Provide `Authorization` header when downloading `update-job-proxy` #4727

Job	Run time
Resolve environment (macos-latest, default)	2m 29s
Resolve environment (windows-latest, linked)	2m 8s
Resolve environment (ubuntu-latest, nightly-latest)	36s
Resolve environment (windows-latest, default)	1m 13s
Resolve environment (ubuntu-latest, default)	33s
Resolve environment (macos-latest, nightly-latest)	1m 58s
Resolve environment (ubuntu-latest, linked)	36s
Resolve environment (windows-latest, nightly-latest)	1m 45s
Resolve environment (macos-latest, linked)	2m 53s
	14m 11s

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