[mattlqx]

python (python 2.x) is no longer distributed on Ubuntu, Mac and several other distros. This pull changes all the build interpreters to use python3 and makes appropriate changes to do proper make.

Updates serverspec Gemfile for Ruby 3 compatibility.

Not sure what else would need done to accommodate CI but this works for me on Ubuntu 22.

[sonarqubecloud]

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[Kanti]

Thank you for this, and sorry that it sat here without an answer for so long.

You were right that building needed Python 2, which most systems no longer ship. We have now solved it differently: #604 rewrites the generator in PHP and removes Python from the build altogether, so make generate only needs make and Docker. Because of that, this PR won't be merged, and I'm closing it in favor of #604.

Thanks again for pointing at the problem early. If you still build the images yourself, I'd be glad to hear whether #604 works for you.