Install Python 3.12 as optional version #633
Merged
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Having Python 3.12 is important to run internal tools in the CI, but as Conan should be working with an older version, both Python versions can be installed in parallel in the image.
The OpenSSL 1.1 is required in order to build Python 3.12: https://github.com/pyenv/pyenv/wiki/Common-build-problems#2-your-openssl-version-is-incompatible-with-the-python-version-youre-trying-to-install; Ubuntu 16.04 only offers OpenSSL 1.0, so we need to build it from source.
UPDATE: OpenSSL 3.x is compatible and will be used instead of 1.1.x version.