Accept OIDC configurations in `start-proxy` #11728

Job	Run time
analyze-other (actions)	52s
check-codeql-versions	16s
analyze-other (python)	56s
analyze-javascript (ubuntu-22.04)	4m 31s
analyze-javascript (windows-2022, linked)	6m 37s
analyze-javascript (macos-15, linked)	8m 1s
analyze-javascript (ubuntu-24.04, linked)	4m 20s
analyze-javascript (windows-2025)	7m 13s
analyze-javascript (macos-14)	5m 36s
analyze-javascript (windows-2025, linked)	7m 4s
analyze-javascript (macos-15)	7m 0s
analyze-javascript (ubuntu-22.04, linked)	4m 33s
analyze-javascript (macos-14, linked)	9m 1s
analyze-javascript (windows-2022)	6m 40s
analyze-javascript (ubuntu-24.04)	4m 41s
	1h 17m 21s

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