[Backport 1.x] Bump Octokit from 7.1.0 to 8.0.0 #977

Job	Run time
Integration OpenSearch Unreleased (1.x)	19m 26s
Integration OpenSearch Unreleased (2.x)	25m 27s
Integration OpenSearch (2.7.0)	8m 13s
Integration OpenSearch Unreleased (main)	18m 9s
Integration OpenSearch (2.6.0)	9m 13s
Integration OpenSearch (2.5.0)	10m 12s
Integration OpenSearch (2.4.1)	7m 40s
Integration OpenSearch (2.3.0)	8m 53s
Integration OpenSearch (2.2.1)	7m 37s
Integration OpenSearch (2.1.0)	7m 23s
Integration OpenSearch (2.0.1)	8m 8s
Integration OpenSearch (1.3.10)	7m 48s
Integration OpenSearch (1.2.4)	8m 25s
Integration OpenSearch (1.1.0)	8m 30s
Integration OpenSearch (1.0.0)	12m 21s
	2h 47m 25s

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