chore: Automatically set the Category field to "Maintenance" when a PR with the label package-deps

[nywilken]

Enhance the existing Add issue to org Project workflow to automatically set the Category field to "Maintenance" when a PR with the label package-deps is added to the project board.

This will streamline project management by tagging relevant items with the appropriate property field automatically, ensuring consistent metadata on project entries.

Acceptance Criteria

• When an issue or PR has the label package-deps, and it’s added to the project board, the category field is automatically set to Maintenance.
• The update only occurs when:
  • The item was successfully added to the project.
  • The label package-deps exists.
• Field and option IDs are configurable via environment variables (FIELD_ID and OPTION_ID).
• No update occurs for issues without the label.

[nywilken]

This needs to include support-deps label as well.