Add eslint for `pr-checks` #7323

Job	Run time
Ruby analysis (macos-latest, linked)	57s
Ruby analysis (macos-latest, default)	1m 2s
Ruby analysis (ubuntu-latest, default)	44s
Ruby analysis (ubuntu-latest, linked)	53s
Ruby analysis (macos-latest, nightly-latest)	1m 1s
Ruby analysis (ubuntu-latest, nightly-latest)	48s
	5m 25s

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