Update Kodi add-on checker workflow #1339

Job	Run time
Add-on testing (ubuntu-latest, 3.8)	3m 39s
Add-on testing (ubuntu-latest, 3.9)	3m 41s
Add-on testing (ubuntu-latest, 3.10)	5m 37s
Add-on testing (ubuntu-latest, 3.11)	3m 38s
Add-on testing (windows-latest, 3.8)	4m 41s
Add-on testing (windows-latest, 3.9)	6m 11s
Add-on testing (windows-latest, 3.10)	4m 1s
Add-on testing (windows-latest, 3.11)	5m 20s
Add-on testing (ubuntu-20.04, 2.7)	6m 45s
Add-on testing (ubuntu-20.04, 3.5)	23s
Add-on testing (ubuntu-20.04, 3.6)	4m 26s
Add-on testing (windows-latest, 2.7)	5m 52s
	54m 14s

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