Load hassio before backup at frontend stage

[jpbede]

Proposed change

backup is loaded already before stage 1 as a dependency of frontend while hassio is loaded after that at stage 1.
This leads to is_hassio returning False when backup is loaded, thinking we are a container/core install and preventing backups on Supervised or HAOS installs.

This PR ensures that hassio is also loaded at the frontend stage as well. Fyi hassio loaded: is a debug from me.

Before:

2025-02-01 10:13:10.825 INFO (MainThread) [homeassistant.bootstrap] Setting up frontend: {'backup', 'frontend'}
2025-02-01 10:13:10.841 DEBUG (MainThread) [homeassistant.components.backup] Scheduling next automatic delete of backups older than 7 in 1 day
2025-02-01 10:13:10.844 DEBUG (MainThread) [homeassistant.components.backup] Scheduling next automatic backup at 2025-02-02 05:02:57+01:00
2025-02-01 10:13:10.848 DEBUG (MainThread) [homeassistant.components.backup] Loaded 0 platforms
2025-02-01 10:13:10.848 DEBUG (MainThread) [homeassistant.components.backup] Loaded 0 agents
2025-02-01 10:13:10.849 DEBUG (MainThread) [homeassistant.components.backup] Loading backup agents for backup
2025-02-01 10:13:10.849 DEBUG (MainThread) [homeassistant.components.backup] hassio loaded: False
2025-02-01 10:13:10.849 DEBUG (MainThread) [homeassistant.components.backup] Backup platform backup loaded
2025-02-01 10:13:10.849 DEBUG (MainThread) [homeassistant.components.backup] 0 platforms loaded in total
2025-02-01 10:13:10.849 DEBUG (MainThread) [homeassistant.components.backup] 1 agents loaded in total
2025-02-01 10:13:10.849 DEBUG (MainThread) [homeassistant.components.backup] 1 local agents loaded in total
2025-02-01 10:13:10.858 INFO (MainThread) [homeassistant.bootstrap] Setting up recorder: {'recorder'}
2025-02-01 10:13:11.006 DEBUG (MainThread) [homeassistant.components.backup] Backup platform recorder loaded
2025-02-01 10:13:11.006 DEBUG (MainThread) [homeassistant.components.backup] 1 platforms loaded in total
2025-02-01 10:13:11.006 DEBUG (MainThread) [homeassistant.components.backup] 1 agents loaded in total
2025-02-01 10:13:11.006 DEBUG (MainThread) [homeassistant.components.backup] 1 local agents loaded in total
2025-02-01 10:13:11.006 INFO (MainThread) [homeassistant.bootstrap] Setting up debugger: {'debugpy'}
2025-02-01 10:13:11.006 INFO (MainThread) [homeassistant.bootstrap] Setting up stage 1: {'http', 'websocket_api', 'zeroconf', 'webhook', 'network', 'api', 'hassio', 'cloud', 'ssdp', 'auth', 'dhcp', 'usb', 'bluetooth', 'repairs'}

After:

2025-02-01 10:23:12.487 INFO (MainThread) [homeassistant.bootstrap] Setting up frontend: {'backup', 'frontend', 'hassio'}
2025-02-01 10:23:12.715 DEBUG (MainThread) [homeassistant.components.backup] Scheduling next automatic delete of backups older than 7 in 1 day
2025-02-01 10:23:12.715 DEBUG (MainThread) [homeassistant.components.backup] Scheduling next automatic backup at 2025-02-02 05:03:52+01:00
2025-02-01 10:23:12.716 DEBUG (MainThread) [homeassistant.components.backup] Loading backup agents for hassio
2025-02-01 10:23:12.717 DEBUG (MainThread) [homeassistant.components.backup] Backup platform hassio loaded
2025-02-01 10:23:12.717 DEBUG (MainThread) [homeassistant.components.backup] 0 platforms loaded in total
2025-02-01 10:23:12.717 DEBUG (MainThread) [homeassistant.components.backup] 0 agents loaded in total
2025-02-01 10:23:12.717 DEBUG (MainThread) [homeassistant.components.backup] 0 local agents loaded in total
2025-02-01 10:23:12.717 DEBUG (MainThread) [homeassistant.components.backup] Loaded 0 platforms
2025-02-01 10:23:12.717 DEBUG (MainThread) [homeassistant.components.backup] Loaded 0 agents
2025-02-01 10:23:12.718 DEBUG (MainThread) [homeassistant.components.backup] Loading backup agents for backup
2025-02-01 10:23:12.718 DEBUG (MainThread) [homeassistant.components.backup] hassio loaded: True
2025-02-01 10:23:12.718 DEBUG (MainThread) [homeassistant.components.backup] Backup platform backup loaded
2025-02-01 10:23:12.718 DEBUG (MainThread) [homeassistant.components.backup] 0 platforms loaded in total
2025-02-01 10:23:12.718 DEBUG (MainThread) [homeassistant.components.backup] 0 agents loaded in total
2025-02-01 10:23:12.718 DEBUG (MainThread) [homeassistant.components.backup] 0 local agents loaded in total
2025-02-01 10:23:12.730 INFO (MainThread) [homeassistant.bootstrap] Setting up recorder: {'recorder'}
2025-02-01 10:23:12.862 DEBUG (MainThread) [homeassistant.components.backup] Backup platform recorder loaded
2025-02-01 10:23:12.862 DEBUG (MainThread) [homeassistant.components.backup] 1 platforms loaded in total
2025-02-01 10:23:12.863 DEBUG (MainThread) [homeassistant.components.backup] 2 agents loaded in total
2025-02-01 10:23:12.863 DEBUG (MainThread) [homeassistant.components.backup] 0 local agents loaded in total
2025-02-01 10:23:12.863 INFO (MainThread) [homeassistant.bootstrap] Setting up debugger: {'debugpy'}
2025-02-01 10:23:12.863 INFO (MainThread) [homeassistant.bootstrap] Setting up stage 1: {'bluetooth', 'ssdp', 'http', 'usb', 'repairs', 'webhook', 'auth', 'network', 'cloud', 'api', 'zeroconf', 'websocket_api', 'dhcp', 'hassio'}

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes Double drive (This System) for location backups #137055, fixes Automatic backup failed #137041
• This PR is related to issue:
• Link to documentation pull request:
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.

To help with the load of incoming pull requests:

• I have reviewed two other open pull requests in this repository.

[emontnemery]

As a side note: We should either make after_dependencies work also for earlier stages than stage 2, or we should not allow them. having to do this manually is too fragile.

[marc3k18]

It is fix in b4?

[smarthomejunkie]

It is fix in b4?

I think it's for the next b5

[marc3k18]

It is fix in b4?

I think it's for the next b5

Thanks!