[TECH DEBT] [3007.x] Removed Python 3.8 from pre-commit

[dmurphy18]

Description of the tech debt to be addressed, include links and screenshots

With the use of relenv in 3006.x and above, Pyhton 3.10 is only supported at the moment, but pre-commit is checking for 3.8 which are EOL, and Python 3.9 which is supported as the system python on that OS, but Salt no longer supports system python with relenv, hence removing support for Python 3.9.

Note, Python 3.11 and 3.12 shall remain as part of the pre-commit since there is on-going work to support these versions of Python, that ha not been released yet.

Versions Report

(Provided by running salt --versions-report. Please also mention any differences in master/minion versions.)