Replace Alpine with Wolfi as primary server container image, consolidating Alpine agent images

[chadlwilson]

This PR does a few things.

• Replaces the primary gocd-server base image with Wolfi from Chainguard: https://edu.chainguard.dev/open-source/wolfi/overview/ - a minimal highly secure "undistro" with rapid patching of packages and a small footprint.
  • Alpine's use of musl libc along with our use of the Tanuki Service Wrapper prevents creation of arm64 images as noted in Provide arm64/aarch64 Alpine agent container image variants #11355 which is not great for our default server container image. I'd like for the default to be a lot smaller than Centos 9 (unofficial alternate image) and work on arm64/aarch64 by default.
  • Currently we are installing glibc on Alpine to make the JVM work with Tanuki which is not recommended, potentially unstable, and considered a bad idea by the Alpine community potentially opening security holes and confused library loading for other native software running in the container.
• Introduces a rolling/continuous wolfi agent image gocd-agent-wolfi as the preferred "minimal/secure" image, available for both arm64 and x64
• Changes Alpine agent images to a single rolling release gocd-agent-alpine rather than every Alpine release.
  • Alpine releases every 6 months with support for 2 years, which means constant churn maintaining these images/repos since they don't use tags within a repo and having to support and test 4 different variants at once. That's not worth the effort given at the moment I am basically sole maintainer.
  • Alpine has very good backward compatibility, and very rarely is there a compatiblity problem with new versions that prevents rolling forward.
  • Alpine often doesn't port new versions of APKs to old releases, meaning you really need to stay current to get new versions of tools
  • The GoCD agent images are really just a bootstrapper; so folks can usually keep using an older version agent image with a newer server if they need to for a while, if they want to stick to an older Alpine version after GoCD has moved forward.