Add release_phase column to rule_type table.

[blkt]

Summary

The new release_phase column of rule_type table contains release phase information about the rule type, being one of alpha, beta, ga, or deprecated. The available states are defined as an enumerated type.

Fixes #4242
Fixes #4243

Change Type

• Bug fix (resolves an issue without affecting existing features)
• Feature (adds new functionality without breaking changes)
• Breaking change (may impact existing functionalities or require documentation updates)
• Documentation (updates or additions to documentation)
• Refactoring or test improvements (no bug fixes or new functionality)

Testing

Manually tested up and down migration.

Review Checklist:

• Reviewed my own code for quality and clarity.
• Added comments to complex or tricky code sections.
• Updated any affected documentation.
• Included tests that validate the fix or feature.
• Checked that related changes are merged.

[coveralls]

coverage: 53.703% (-0.008%) from 53.711%
when pulling 8d9659e on issue-4242
into 21e0927 on main.

[rdimitrov]

@blkt - it seems there are some issues making the checks fail

[JAORMX]

uhm... Are states anything that would be acted on? Why not have a labeling system or annotations instead?

[evankanderson]

Question: do we want to hard-code this metadata in the database schema, or store in a flexible envelope (like JSON)?