Update Packages.md to reflect current status
- Formatting changes (consistent newlines, headers in the right place)
- Keycloak is now PERMISSIVE mTLS since it is injected
- Gitlab runner inherits STRICT mTLS
Rendered preview https://repo1.dso.mil/platform-one/big-bang/bigbang/-/blob/packages-update/Packages.md
Edited by Micah Nagel