Refactoring: Simplify upload SARIF flow and reuse loaded flags #5143

Job	Run time
Packaging: Config file (ubuntu-latest, linked)	1m 36s
Packaging: Config file (macos-latest, linked)	2m 12s
Packaging: Config file (windows-latest, linked)	5m 44s
Packaging: Config file (ubuntu-latest, default)	1m 8s
Packaging: Config file (macos-latest, default)	1m 37s
Packaging: Config file (windows-latest, default)	3m 55s
Packaging: Config file (ubuntu-latest, nightly-latest)	1m 54s
Packaging: Config file (macos-latest, nightly-latest)	2m 7s
Packaging: Config file (windows-latest, nightly-latest)	6m 14s
	26m 27s

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