Unify `token` description for `resolve-environment`, `start-proxy`, and `upload-sarif` #5990

Job	Run time
Upload-sarif: 'ref' and 'sha' from inputs (windows-latest, default)	12m 47s
Upload-sarif: 'ref' and 'sha' from inputs (ubuntu-latest, default)	4m 19s
Upload-sarif: 'ref' and 'sha' from inputs (macos-latest, default)	8m 41s
	25m 47s

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