Accept `git_source` registry configurations for Go #4894

Job	Run time
Diagnostic export (macos-latest, linked)	1m 19s
Diagnostic export (windows-latest, linked)	3m 6s
Diagnostic export (ubuntu-latest, nightly-latest)	1m 2s
Diagnostic export (windows-latest, nightly-latest)	3m 0s
Diagnostic export (ubuntu-latest, linked)	59s
Diagnostic export (macos-latest, nightly-latest)	1m 12s
	10m 38s

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