Remove PY3.8 support; Add PY3.13 support #1049

Job	Run time
linters (3.9, ubuntu-latest)	1m 54s
Testing on Python 3.9 (ubuntu-latest)	22s
Testing on Python 3.9 (macos-13)	1s
Testing on Python 3.9 (windows-2019)	27s
Testing on Python 3.10 (ubuntu-latest)	49s
Testing on Python 3.10 (macos-13)	28s
Testing on Python 3.10 (windows-2019)	2m 4s
Testing on Python 3.11 (ubuntu-latest)	53s
Testing on Python 3.11 (macos-13)	26s
Testing on Python 3.11 (windows-2019)	1m 24s
Testing on Python 3.12 (ubuntu-latest)	1m 21s
Testing on Python 3.12 (macos-13)	26s
Testing on Python 3.12 (windows-2019)	1m 11s
Testing on Python 3.13 (ubuntu-latest)	1m 17s
Testing on Python 3.13 (macos-13)	1s
Testing on Python 3.13 (windows-2019)	22s
	13m 26s

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