Fix `upload-sarif` Action failing if there are no Code Scanning SARIF files #7776

Job	Run time
Packaging: Config file (macos-latest, linked)	2m 30s
Packaging: Config file (ubuntu-latest, default)	1m 18s
Packaging: Config file (macos-latest, nightly-latest)	1m 23s
Packaging: Config file (ubuntu-latest, linked)	1m 33s
Packaging: Config file (windows-latest, linked)	4m 14s
Packaging: Config file (windows-latest, default)	3m 37s
Packaging: Config file (windows-latest, nightly-latest)	7m 12s
Packaging: Config file (ubuntu-latest, nightly-latest)	1m 24s
Packaging: Config file (macos-latest, default)	1m 38s
	24m 49s

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