Clean up `resolve_supported_languages_using_cli` FF #6222

Job	Run time
Ruby analysis (ubuntu-latest, linked)	48s
Ruby analysis (macos-latest, linked)	56s
Ruby analysis (ubuntu-latest, nightly-latest)	46s
Ruby analysis (macos-latest, default)	1m 14s
Ruby analysis (macos-latest, nightly-latest)	2m 39s
Ruby analysis (ubuntu-latest, default)	45s
	7m 8s

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