Update default bundle to 2.21.1 #3655

Job	Run time
Resolve environment (macos-latest, default)	1m 41s
Resolve environment (windows-latest, default)	5m 38s
Resolve environment (ubuntu-latest, default)	31s
Resolve environment (windows-latest, linked)	4m 40s
Resolve environment (ubuntu-latest, linked)	28s
Resolve environment (ubuntu-latest, nightly-latest)	30s
Resolve environment (windows-latest, nightly-latest)	4m 7s
Resolve environment (macos-latest, linked)	1m 48s
Resolve environment (macos-latest, nightly-latest)	1m 40s
	21m 3s

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