chore: update Nx to v21 #6361

Job	Run time
Format check	39s
Linter	2m 24s
Integration tests (ubuntu-latest)	37s
Unit tests (ubuntu-latest)	1m 10s
Unit tests (windows-latest)	1m 25s
Build	55s
Unit tests (macos-latest)	1m 2s
Integration tests (windows-latest)	1m 34s
Integration tests (macos-latest)	1m 9s
E2E tests (ubuntu-latest)	6m 42s
E2E tests (windows-latest)	13m 14s
E2E tests (macos-latest)	6m 50s
	37m 41s

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