Test Rich module

Update CONTRIBUTING.md #3840

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Job	Run time
build (ubuntu-latest, 3.13)	59s
build (macos-latest, 3.14)	1m 9s
build (macos-latest, 3.8)	1m 32s
build (ubuntu-latest, 3.8)	1m 8s
build (windows-latest, 3.14)	2m 12s
build (macos-latest, 3.12)	58s
build (windows-latest, 3.10)	1m 45s
build (ubuntu-latest, 3.12)	1m 7s
build (ubuntu-latest, 3.9)	1m 10s
build (windows-latest, 3.9)	2m 13s
build (ubuntu-latest, 3.14)	1m 14s
build (macos-latest, 3.9)	1m 29s
build (macos-latest, 3.11)	58s
build (windows-latest, 3.12)	2m 46s
build (ubuntu-latest, 3.10)	1m 3s
build (macos-latest, 3.10)	1m 16s
build (macos-latest, 3.13)	57s
build (windows-latest, 3.11)	1m 56s
build (windows-latest, 3.8)	2m 12s
build (ubuntu-latest, 3.11)	57s
	29m 1s