Update supported GitHub Enterprise Server versions #2043

Job	Run time
Resolve environment (ubuntu-latest, stable-v2.13.4)	37s
Resolve environment (macos-12, stable-v2.13.4)	2m 10s
Resolve environment (windows-latest, stable-v2.13.4)	2m 46s
Resolve environment (ubuntu-latest, default)	36s
Resolve environment (macos-latest, default)	2m 1s
Resolve environment (windows-latest, default)	55s
Resolve environment (ubuntu-latest, linked)	23s
Resolve environment (macos-latest, linked)	1m 47s
Resolve environment (windows-latest, linked)	55s
Resolve environment (ubuntu-latest, nightly-latest)	52s
Resolve environment (macos-latest, nightly-latest)	2m 44s
Resolve environment (windows-latest, nightly-latest)	2m 16s
	18m 2s

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