Unblock ADO mirror: BYPASS_SECRET_SCANNING (empty commit, ff-merge only)

[ahmedmuhsin]

Purpose

Adds a single empty commit (**BYPASS_SECRET_SCANNING**) so the GitHub → Azure DevOps mirror can complete. This follows the 1ES Secret Scanning soft-blocking guidance and does not rewrite history, move tags, or change any existing commit SHAs.

Background

The mirror to azfunc/internal/_git/azure.azure-functions-java-worker is failing with 1ES VS403654: NonbypassableBlock. Commit 079a4d4 (May 2026) carries private-key test fixtures under src/test/resources/grpc-tls/ (localhost-key.pem, localhost-truststore.p12). Those fixtures were already removed from the tip and are now generated at runtime (#878); this empty commit clears the historical mirror block without touching history.

⚠️ How to merge — FAST-FORWARD ONLY

The **BYPASS_SECRET_SCANNING** commit must become the unmodified HEAD of dev at mirror time. Do NOT use the GitHub Merge / Squash / Rebase buttons — they rewrite or bury the commit and the bypass will not take effect.

After approval, merge locally with fast-forward only:

git fetch origin
git checkout dev
git pull origin dev
git merge --ff-only origin/bypass-secret-scanning
git push origin dev

This guarantees no merge commit is created, the BYPASS commit stays intact, and it becomes the HEAD of dev.