ci(fixup): restore newlines in hypatia-scan.yml

Previous commit on this branch wrote the YAML as a single line due to a
PowerShell encoding/-NoNewline mistake on my end. This re-applies the
canonical workflow content byte-for-byte, with line breaks intact, so
GitHub Actions can parse it.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: hyperpolymath