Cgroup V2 statistic engine improvements

[gkhandake]

• Improve statistic engine to support cgroup v2 memory stats

[gkhandake]

Hi @f18m please review and suggest. This change was needed to put few assertions and check on memory utilization.

[f18m]

@gkhandake can you merge from main?
I was not sure about the changes to the Dockerfile.builder, so I had a look and I found my own docker pattern to be quite weird (with the dockerfile being split in a builder and non-builder part... for such a small app). So I corrected the thing and restored a more standard approach to docker image building.
If you merge from main, you can see if you can build the docker image without the need to change the Alpine pkgs being installed... thanks

[gkhandake]

Done

[f18m]

Done

thanks! merging now!

[gkhandake]

Hi @f18m can we please also get a release with minor version bump ?

[f18m]

Hi @f18m can we please also get a release with minor version bump ?

Sure, let me spin a new release.