Update Yarn to v1.22.21 #2418

Job	Run time
Floating Dependencies	1m 32s
Tests	1m 21s
Try: ember-default-with-jquery	2m 5s
Try: ember-default-with-mocha	1m 48s
Try: ember-classic	2m 9s
Try: embroider-safe	2m 51s
Try: embroider-safe-with-mocha	2m 38s
Try: embroider-optimized	2m 14s
Try: embroider-optimized-with-mocha	3m 44s
Try: ember-lts-3.24	2m 25s
Try: ember-lts-3.20	2m 4s
Try: ember-release	2m 10s
Try: ember-beta	2m 11s
Try: ember-canary	2m 9s
Try: ember-qunit-4	2m 33s
	33m 54s

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