DEV - Refactor CI and environment setup #9

Job	Run time
lint	1m 5s
a11y-tests (ubuntu-latest, 3.12)	2m 31s
run-pytest (ubuntu-latest, 3.9)	11s
run-pytest (ubuntu-latest, 3.10)	10s
run-pytest (ubuntu-latest, 3.11)	10s
run-pytest (ubuntu-latest, 3.12)	11s
run-pytest (macos-latest, 3.9)	1s
build PST docs (ubuntu-latest, 3.12)	12s
run-pytest (macos-latest, 3.10)	14s
run-pytest (macos-latest, 3.11)	1s
build PST docs (macos-latest, 3.12)	26s
run-pytest (macos-latest, 3.12)	1s
build PST docs (windows-latest, 3.12)	48s
run-pytest (macos-14, 3.10)	19s
build PST docs (ubuntu-latest, 3.9, 6.1)	11s
run-pytest (macos-14, 3.11)	26s
run-pytest (macos-14, 3.12)	15s
run-pytest (windows-latest, 3.9)	12s
run-pytest (windows-latest, 3.10)	10s
run-pytest (windows-latest, 3.11)	11s
run-pytest (windows-latest, 3.12)	9s
run-pytest (ubuntu-latest, 3.9, 6.1)	14s
run-pytest (ubuntu-latest, 3.12, dev)	11s
check coverage	0s
profiling	0s
lighthouse-audit	0s
	8m 19s

Provide feedback