Fix `upload-sarif` not uploading non-`.sarif` files #5843

Job	Run time
Go: tracing with custom build steps (macos-latest, stable-v2.18.4)	3m 5s
Go: tracing with custom build steps (ubuntu-latest, stable-v2.18.4)	1m 37s
Go: tracing with custom build steps (macos-latest, stable-v2.19.4)	2m 8s
Go: tracing with custom build steps (ubuntu-latest, stable-v2.19.4)	1m 22s
Go: tracing with custom build steps (macos-latest, stable-v2.21.4)	3m 8s
Go: tracing with custom build steps (macos-latest, default)	2m 59s
Go: tracing with custom build steps (macos-latest, nightly-latest)	3m 31s
Go: tracing with custom build steps (ubuntu-latest, stable-v2.22.4)	2m 14s
Go: tracing with custom build steps (macos-latest, linked)	3m 9s
Go: tracing with custom build steps (macos-latest, stable-v2.22.4)	3m 37s
Go: tracing with custom build steps (ubuntu-latest, linked)	1m 31s
Go: tracing with custom build steps (ubuntu-latest, stable-v2.17.6)	1m 13s
Go: tracing with custom build steps (ubuntu-latest, stable-v2.21.4)	1m 45s
Go: tracing with custom build steps (ubuntu-latest, nightly-latest)	1m 8s
Go: tracing with custom build steps (ubuntu-latest, default)	1m 20s
Go: tracing with custom build steps (macos-latest, stable-v2.20.7)	3m 20s
Go: tracing with custom build steps (ubuntu-latest, stable-v2.20.7)	1m 48s
Go: tracing with custom build steps (macos-latest, stable-v2.17.6)	2m 22s
	41m 17s

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