chore(deps): bump library/node from 21.7.1 to 21.7.3 in /ui-test #28254

Job	Run time
changes	13s
Check changes to generated code	8m 52s
Lint Go code	57s
Build & cache Go code	2m 49s
Ensure Go modules synchronicity	29s
Build, test & lint UI code	0s
Run unit tests for Go packages	4m 4s
Run end-to-end tests (v1.29.1)	49m 1s
Run unit tests with -race for Go packages	7m 44s
Run end-to-end tests (v1.28.6)	45m 45s
Run end-to-end tests (v1.27.10)	44m 47s
Run end-to-end tests (v1.26.13)	45m 0s
Run end-to-end tests (v1.25.16)	45m 7s
Process & analyze test artifacts	0s
E2E Tests - Composite result	1s
	4h 14m 49s

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