Add Risco set_time service

[FredericMa]

Proposed change

This PR adds a set_time service to the Risco integration to set the time of the alarm panel on a local connection.
Reasoning behind it: The panel I have only allows one connection so it doesn't seem to be able to sync the time with a timeserver although it is configured to do so. Over a few weeks time there is a drift of 8 minutes between the current time and the time of the panel.
This service makes it possible to create an automation to update the time of the panel at a preferred interval.

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 #
• This PR is related to issue:
• Link to documentation pull request: Risco - Add set_time service description home-assistant.io#37613
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• The code change is tested and works locally.
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• Tests have been added to verify that the new code works.

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[home-assistant]

Hey there @OnFreund, mind taking a look at this pull request as it has been labeled with an integration (risco) you are listed as a code owner for? Thanks!

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[OnFreund]

Please split the dependency bump to a separate PR.
The refactoring should probably be a separate PR as well.