fix: remove Python 3.8 and 3.9 from integration test matrix #87

Job	Run time
integration-test (3.12)	1m 48s
test (3.10)	17s
integration-test (3.11)	1m 47s
test (3.11)	20s
integration-test (3.10)	1m 53s
test (3.12)	22s
integration-test-fork-feedback	-1s
build	-1s
	6m 25s

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