feat!: drop Python 3.7 and 3.8 support (#451) #1134

Job	Run time
pre-commit	25s
meta	10s
test-unit 3.10	2m 0s
fossa-scan	1m 3s
test-unit 3.9	2m 3s
test-unit 3.12	1m 54s
test-unit 3.11	1m 53s
test-unit 3.13	1m 56s
compliance-copyrights	31s
semgrep / sast-scan	36s
test-splunk (9.4.0, 6b4ebe426ca6, true, false)	2m 57s
test-splunk (9.3.2, d8bb32809498, false, false)	3m 0s
publish	1m 36s
	20m 4s

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