Ignore stage names in `dockerfile verify` #9737

Job	Run time
Run e2e tests	17m 0s
Run PowerShell E2E tests	8m 13s
license boilerplate check	7s
Run unit tests (macos-latest)	2m 46s
Run unit tests (ubuntu-latest)	5m 43s
Run unit tests (windows-latest)	15m 11s
	49m 0s

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