DEV - Refactor CI and environment setup #16

Job	Run time
lint	1m 5s
a11y-tests (ubuntu-latest, 3.12)	2m 32s
run-pytest (ubuntu-latest, 3.9)	1m 41s
build PST docs (ubuntu-latest, 3.12)	43s
run-pytest (ubuntu-latest, 3.10)	1m 38s
build PST docs (macos-latest, 3.12)	1m 1s
run-pytest (ubuntu-latest, 3.11)	1m 32s
run-pytest (ubuntu-latest, 3.12)	1m 50s
build PST docs (windows-latest, 3.12)	3m 32s
build PST docs (ubuntu-latest, 3.9, 61)	39s
run-pytest (macos-latest, 3.9)	1m 37s
run-pytest (macos-latest, 3.10)	1m 45s
run-pytest (macos-latest, 3.11)	1m 17s
run-pytest (macos-latest, 3.12)	1m 24s
run-pytest (macos-14, 3.10)	1m 35s
run-pytest (macos-14, 3.11)	1m 25s
run-pytest (macos-14, 3.12)	1m 38s
run-pytest (windows-latest, 3.9)	4m 3s
run-pytest (windows-latest, 3.10)	4m 5s
run-pytest (windows-latest, 3.11)	4m 20s
run-pytest (windows-latest, 3.12)	4m 10s
run-pytest (ubuntu-latest, 3.9, 61)	1m 32s
run-pytest (ubuntu-latest, 3.12, dev)	1m 58s
lighthouse-audit	3m 48s
profile	13s
check coverage	16s
	51m 19s

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