Fix CI pipeline

[navarone-feekery]

This PR fixes two things:

1. Broken curl lib

Curl released an 8.12.0 yesterday. This is broken in Alpine Linux distros, calling curl with any sub command causes a crash.

Resolves CI failure likely caused by recent release of curl:

Step 6/22 : RUN mkdir /opt/jruby   && curl -fSL https://repo1.maven.org/maven2/org/jruby/jruby-dist/${JRUBY_VERSION}/jruby-dist-${JRUBY_VERSION}-bin.tar.gz -o /tmp/jruby.tar.gz   && echo "$JRUBY_SHA256 /tmp/jruby.tar.gz" | sha256sum -c -   && tar -zx --strip-components=1 -f /tmp/jruby.tar.gz -C /opt/jruby   && rm /tmp/jruby.tar.gz
 ---> Running in 9bf1d7e98f6c
curl: symbol lookup error: curl: undefined symbol: curl_easy_ssls_export
The command '/bin/sh -c mkdir /opt/jruby   && curl -fSL https://repo1.maven.org/maven2/org/jruby/jruby-dist/${JRUBY_VERSION}/jruby-dist-${JRUBY_VERSION}-bin.tar.gz -o /tmp/jruby.tar.gz   && echo "$JRUBY_SHA256 /tmp/jruby.tar.gz" | sha256sum -c -   && tar -zx --strip-components=1 -f /tmp/jruby.tar.gz -C /opt/jruby   && rm /tmp/jruby.tar.gz' returned a non-zero code: 127

2. Removal of obsolete Dockerfile

We had a second Dockerfile being used for CI testing. We should be doing this on the Dockerfile.wolfi. I've removed the old Dockerfile and changed pointers to towards Dockerfile.wolfi.

[github-actions]

💚 Backport PR(s) successfully created

Status	Branch	Result
✅	0.2	#212

This backport PR will be merged automatically after passing CI.