[Task]: Sunset Python 3.8 support

[tvalentyn]

What needs to happen?

Python 3.8 supports ends Oct 2024.

Some Beam dependencies, such as pandas, no longer have Python 3.8 releases. We should prepare to sunset Python 3.8 support as well.

Issue Priority

Priority: 2 (default / most normal work should be filed as P2)

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