v1.6.1

Container image:

docker pull ghcr.io/delnegend/l4d2-server-container:1.6.1

Or latest for the most recent release. The git tag v1.6.1
is the same image, named the way git wants it.

What's Changed

• build: bump the pinned upstream versions by @github-actions[bot] in #23

Full Changelog: v1.6.0...v1.6.1