Upgrade `octokit` to v4.1.2 #3798

Job	Run time
Diagnostic export (macos-latest, linked)	1m 15s
Diagnostic export (ubuntu-latest, linked)	1m 9s
Diagnostic export (windows-latest, linked)	2m 57s
Diagnostic export (ubuntu-latest, nightly-latest)	1m 3s
Diagnostic export (windows-latest, nightly-latest)	3m 43s
Diagnostic export (macos-latest, nightly-latest)	1m 22s
	11m 29s

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