Fix `upload-sarif` not uploading non-`.sarif` files #5847

Job	Run time
Ruby analysis (macos-latest, linked)	53s
Ruby analysis (macos-latest, default)	2m 2s
Ruby analysis (macos-latest, nightly-latest)	55s
Ruby analysis (ubuntu-latest, linked)	1m 7s
Ruby analysis (ubuntu-latest, default)	1m 2s
Ruby analysis (ubuntu-latest, nightly-latest)	52s
	6m 51s

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