fix: hold the probes to the repository checks

The new probes now refuse abbreviated options, read the GitHub token through github_headers, type every signature and document every option. The site build watches region_check.py and the content list, and validate.yml's tests/** counts as watching the list. The testing guide names the two new test modules.

.github/workflows/deploy-site.yml

@@ -40,6 +40,7 @@ on:
       - "scripts/provenance_report.py"
       - "scripts/refresh_data_dirs.py"
       - "scripts/region.py"
+      - "scripts/region_check.py"
       - "scripts/release_record.py"
       - "scripts/restore_large_files.py"
       - "scripts/safeparse.py"
@@ -72,6 +73,8 @@ on:
       - "release.json"
       - "derivable.json"
       - "measurements/**"
+      # The coverage table and the region results read the test game list.
+      - "tests/campaign/content.yml"
       # The Starlight project: config, components, styles, lockfile. Its
       # generated folders are gitignored and never trigger anything.
       - "website/**"