chore: update Nx to v21 #6336

Job	Run time
Format check	1m 27s
Linter	1m 25s
Unit tests (windows-latest)	1m 43s
Build	1m 24s
Integration tests (windows-latest)	1m 42s
Unit tests (ubuntu-latest)	1m 25s
Unit tests (macos-latest)	1m 28s
Integration tests (macos-latest)	1m 31s
Integration tests (ubuntu-latest)	1m 23s
E2E tests (macos-latest)	1m 27s
E2E tests (windows-latest)	1m 46s
E2E tests (ubuntu-latest)	1m 23s
Build	1m 27s
Linter	1m 25s
Unit tests (ubuntu-latest)	1m 25s
Integration tests (ubuntu-latest)	1m 23s
E2E tests (ubuntu-latest)	1m 23s
Unit tests (macos-latest)	1m 28s
E2E tests (windows-latest)	1m 46s
Integration tests (windows-latest)	1m 42s
E2E tests (macos-latest)	1m 27s
Unit tests (windows-latest)	1m 43s
Integration tests (macos-latest)	1m 31s
Format check	1m 27s
	36m 11s

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