Fix `upload-sarif` Action failing if there are no Code Scanning SARIF files #7775

Job	Run time
Packaging: Action input (macos-latest, linked)	1m 26s
Packaging: Action input (macos-latest, nightly-latest)	1m 24s
Packaging: Action input (windows-latest, default)	4m 2s
Packaging: Action input (windows-latest, linked)	3m 24s
Packaging: Action input (ubuntu-latest, linked)	1m 12s
Packaging: Action input (ubuntu-latest, default)	1m 21s
Packaging: Action input (macos-latest, default)	1m 59s
Packaging: Action input (ubuntu-latest, nightly-latest)	1m 51s
Packaging: Action input (windows-latest, nightly-latest)	4m 25s
	21m 4s

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