Update default bundle to 2.21.1 #6785

Job	Run time
Multi-language repository (macos-latest, stable-v2.15.5)	7m 49s
Multi-language repository (ubuntu-latest, stable-v2.17.6)	4m 12s
Multi-language repository (ubuntu-latest, linked)	4m 8s
Multi-language repository (macos-latest, default)	7m 3s
Multi-language repository (ubuntu-latest, stable-v2.16.6)	4m 23s
Multi-language repository (ubuntu-latest, stable-v2.18.4)	4m 15s
Multi-language repository (macos-latest, stable-v2.18.4)	7m 48s
Multi-language repository (macos-latest, stable-v2.19.4)	7m 5s
Multi-language repository (ubuntu-latest, default)	4m 15s
Multi-language repository (macos-latest, nightly-latest)	7m 40s
Multi-language repository (macos-latest, linked)	6m 58s
Multi-language repository (macos-latest, stable-v2.17.6)	8m 17s
Multi-language repository (ubuntu-latest, stable-v2.19.4)	4m 37s
Multi-language repository (ubuntu-latest, stable-v2.15.5)	5m 32s
Multi-language repository (ubuntu-latest, nightly-latest)	3m 55s
Multi-language repository (macos-latest, stable-v2.16.6)	7m 24s
	1h 35m 21s

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