Move platform requirements to availability annotations #14

Job	Run time
Test / Linux (5.8 - jammy)	52s
Test / Windows (5.9 - windows-2022)	11m 55s
Test / Linux (5.9 - jammy)	57s
Test / Windows (6.0 - windows-2022)	12m 19s
Test / Linux (5.10 - jammy)	55s
Test / Windows (nightly - windows-2019)	10m 48s
Test / Linux (6.0 - jammy)	1m 9s
Test / Windows (nightly-6.1 - windows-2019)	9m 58s
Test / Linux (nightly-main - jammy)	1m 18s
Test / Linux (nightly-6.1 - jammy)	1m 16s
Soundness / API breakage check	1m 20s
Soundness / Broken symlinks check	5s
Soundness / Documentation check	1m 14s
Soundness / Format check	32s
Soundness / License headers check	3s
Soundness / Shell check	30s
Soundness / Unacceptable language check	3s
Soundness / Python lint check	9s
Soundness / YAML lint check	3s
	55m 26s

Provide feedback