Release 0.12.2

[khoroshevskyi]

Fixed assignments of schemas to peps

[Copilot]

Pull Request Overview

This PR updates the project to properly support the use of LATEST_SCHEMA_VERSION when assigning schemas to PEPs.

• Refactors schema lookup queries in pepdbagent/modules/project.py to handle the special LATEST_SCHEMA_VERSION.
• Updates the version in pepdbagent/_version.py from 0.12.1 to 0.12.2.
• Updates the changelog in docs/changelog.md.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
pepdbagent/modules/project.py	Adds conditions to query for the latest schema version using LATEST_SCHEMA_VERSION.
pepdbagent/_version.py	Bumps version to 0.12.2.
docs/changelog.md	Updates changelog with the new release details.

Comments suppressed due to low confidence (2)

pepdbagent/modules/project.py:373

• Consider adding a .limit(1) clause to the query that retrieves the latest schema version to ensure that only a single record is returned, which would make the intent explicit and potentially avoid unexpected results.

if schema_version == LATEST_SCHEMA_VERSION:

pepdbagent/modules/project.py:714

• Similarly, in _convert_update_schema_id, consider adding a .limit(1) clause to the latest schema query to enforce a single result and clarify the query intent.

if schema_version == LATEST_SCHEMA_VERSION: