Fix `upload-sarif` Action failing if there are no Code Scanning SARIF files #5709

Job	Run time
Go: tracing with legacy workflow (macos-latest, stable-v2.18.4)	5m 49s
Go: tracing with legacy workflow (macos-latest, stable-v2.17.6)	4m 17s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.20.7)	1m 23s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.18.4)	1m 19s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.21.4)	1m 32s
Go: tracing with legacy workflow (macos-latest, stable-v2.19.4)	6m 33s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.17.6)	1m 25s
Go: tracing with legacy workflow (macos-latest, stable-v2.20.7)	4m 31s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.19.4)	1m 23s
Go: tracing with legacy workflow (ubuntu-latest, linked)	1m 4s
Go: tracing with legacy workflow (macos-latest, default)	4m 52s
Go: tracing with legacy workflow (macos-latest, linked)	5m 56s
Go: tracing with legacy workflow (macos-latest, stable-v2.22.4)	6m 19s
Go: tracing with legacy workflow (ubuntu-latest, nightly-latest)	1m 21s
Go: tracing with legacy workflow (ubuntu-latest, default)	1m 18s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.22.4)	1m 21s
Go: tracing with legacy workflow (macos-latest, stable-v2.21.4)	6m 0s
Go: tracing with legacy workflow (macos-latest, nightly-latest)	5m 52s
	1h 2m 15s

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