DEV - Refactor CI and environment setup #2

Job	Run time
lint	4m 24s
a11y-tests (ubuntu-latest, 3.12)	2m 31s
build PST docs (ubuntu-latest, 3.12)	33s
build PST docs (macos-latest, 3.12)	57s
run-pytest (ubuntu-latest, 3.9)	1m 17s
build PST docs (windows-latest, 3.12)	1m 9s
run-pytest (ubuntu-latest, 3.10)	1m 26s
build PST docs (ubuntu-latest, 3.9, 61)	48s
run-pytest (ubuntu-latest, 3.11)	1m 23s
run-pytest (ubuntu-latest, 3.12)	1m 57s
run-pytest (macos-latest, 3.9)	1m 24s
run-pytest (macos-latest, 3.10)	1m 28s
run-pytest (macos-latest, 3.11)	1m 4s
run-pytest (macos-latest, 3.12)	1m 17s
run-pytest (macos-14, 3.10)	1m 36s
run-pytest (macos-14, 3.11)	1m 21s
run-pytest (macos-14, 3.12)	1m 28s
run-pytest (windows-latest, 3.9)	2m 8s
run-pytest (windows-latest, 3.10)	2m 35s
run-pytest (windows-latest, 3.11)	2m 12s
run-pytest (windows-latest, 3.12)	2m 14s
run-pytest (ubuntu-latest, 3.9, 61)	1m 18s
run-pytest (ubuntu-latest, 3.12, dev)	1m 47s
lighthouse-audit	3m 43s
profile	12s
check coverage	13s
	42m 25s

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