🐛 Include workflow path in parse errors

[bmendonca3]

Summary

• include the matched workflow path when file parser callbacks return errors
• include the workflow path for GitHub Packaging parse errors, which uses its own workflow loop
• add regression coverage for both shared file parser and Packaging paths

This helps malformed workflow YAML errors point at the offending file, addressing #5072.

For the repro repo in #5072, the malformed workflow is .github/workflows/benchmark.yml.

Testing

• GOTOOLCHAIN=local /tmp/scorecard-go-toolchain/go/bin/go test ./checks/fileparser -run 'TestOnMatchingFileContentIncludesFilePathOnCallbackError|TestOnMatchingFileContent' -count=1
• GOTOOLCHAIN=local /tmp/scorecard-go-toolchain/go/bin/go test ./checks/raw/github -run TestPackagingIncludesWorkflowPathOnParseError -count=1
• GOTOOLCHAIN=local /tmp/scorecard-go-toolchain/go/bin/go test ./checks/fileparser ./checks/raw/github ./checks/raw -count=1
• GOTOOLCHAIN=local /tmp/scorecard-go-toolchain/go/bin/go test ./checks/... -count=1
• git diff --check

[justaugustus]

See note about AI contributions —> ossf/allstar#841 (comment)

[github-actions]

This pull request has been marked stale because it has been open for 10 days with no activity