Remove support for CodeQL v2.11.5 and earlier #3283

Job	Run time
Use a custom `checkout_path` (ubuntu-latest, stable-20221211)	6m 0s
Use a custom `checkout_path` (macos-latest, stable-20221211)	14m 28s
Use a custom `checkout_path` (windows-latest, stable-20221211)	9m 13s
Use a custom `checkout_path` (ubuntu-latest, stable-20230418)	2m 15s
Use a custom `checkout_path` (macos-latest, stable-20230418)	4m 45s
Use a custom `checkout_path` (windows-latest, stable-20230418)	4m 21s
Use a custom `checkout_path` (ubuntu-latest, stable-v2.13.5)	2m 22s
Use a custom `checkout_path` (macos-latest, stable-v2.13.5)	6m 4s
Use a custom `checkout_path` (windows-latest, stable-v2.13.5)	4m 44s
Use a custom `checkout_path` (ubuntu-latest, stable-v2.14.6)	2m 28s
Use a custom `checkout_path` (macos-latest, stable-v2.14.6)	7m 11s
Use a custom `checkout_path` (windows-latest, stable-v2.14.6)	4m 41s
Use a custom `checkout_path` (ubuntu-latest, default)	2m 28s
Use a custom `checkout_path` (macos-latest, default)	8m 13s
Use a custom `checkout_path` (windows-latest, default)	5m 11s
Use a custom `checkout_path` (ubuntu-latest, latest)	2m 28s
Use a custom `checkout_path` (macos-latest, latest)	7m 34s
Use a custom `checkout_path` (windows-latest, latest)	4m 5s
Use a custom `checkout_path` (ubuntu-latest, nightly-latest)	2m 25s
Use a custom `checkout_path` (macos-latest, nightly-latest)	5m 34s
Use a custom `checkout_path` (windows-latest, nightly-latest)	4m 4s
	1h 50m 34s

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