- Throws a `ConfigurationError` if parsing the YAML fails
- Add a couple of tests for it

Mergeback v4.30.9 refs/heads/releases/v4 into main

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Co-authored-by: Michael B. Gale <mbg@github.com>

Add experimental functionality for labelling PRs by their size

…thub/workflows/actions/setup-node-6

Bump actions/setup-node from 5 to 6 in /.github/workflows

…r-5ed6ededba

Bump the npm-minor group with 5 updates

Handle user errors for invalid `UserConfig`s and missing query files

Bump timeout for `analyze-action-env` test

Update wording in some log messages

…-limit

Overlay: Lower size limit for overlay base databases

Perform SARIF post-processing independently of upload

Also add tests for it and `getRequiredEnvParam`

Bump minimum CodeQL Bundle version to 2.17.6

Add `getOptionalEnvVar` helper

Add changelog entry for post-processing change