feat: allow minimumReleaseAgeExclude with fylein packages

[rvab]

No description provided.

[Copilot]

Pull request overview

This PR introduces a reusable Python-based validator for pnpm-workspace.yaml policy settings (including scoped support for minimumReleaseAgeExclude) and wires it into the existing GitHub Actions workflow, with accompanying fixtures and tests.

Changes:

• Added scripts/validate_pnpm_workspace.py to validate pnpm-workspace.yaml structure and policy constraints, including minimumReleaseAgeExclude entries scoped to @fylein/* and @fylein/<package>.
• Added unit + CLI end-to-end tests with YAML fixtures to verify validator behavior.
• Updated the validate-pnpm-config.yml workflow to run the shared validator script from the fylein/workflows repository and documented local test execution in the README.

Reviewed changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
scripts/validate_pnpm_workspace.py	New validator script implementing policy checks for pnpm-workspace.yaml.
.github/workflows/validate-pnpm-config.yml	Switches workflow from inline Python to a checked-out shared validator script.
tests/test_validate_pnpm_workspace.py	Unit tests for validator functions and error reporting.
tests/test_validate_pnpm_workspace_e2e.py	End-to-end tests running the validator CLI against fixtures.
tests/fixtures/pnpm-workspace.valid.yaml	Valid fixture covering minimumReleaseAgeExclude with @fylein/* and a concrete package.
tests/fixtures/pnpm-workspace.invalid-exclude.yaml	Invalid fixture ensuring non-@fylein/* entries are rejected.
tests/fixtures/pnpm-workspace.invalid-yaml.yaml	Invalid YAML fixture ensuring YAML parsing errors are surfaced.
README.md	Documents validator purpose and how to run tests locally.
.gitignore	Ignores common Python local artifacts (.venv/, __pycache__/, *.pyc).

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