Remove `disable_combine_sarif_files` feature flag #7253

Job	Run time
Packaging: Action input (ubuntu-latest, default)	1m 12s
Packaging: Action input (windows-latest, linked)	5m 23s
Packaging: Action input (ubuntu-latest, nightly-latest)	3m 8s
Packaging: Action input (macos-latest, linked)	2m 9s
Packaging: Action input (ubuntu-latest, linked)	1m 29s
Packaging: Action input (windows-latest, default)	5m 2s
Packaging: Action input (windows-latest, nightly-latest)	4m 5s
Packaging: Action input (macos-latest, default)	2m 16s
Packaging: Action input (macos-latest, nightly-latest)	3m 9s
Packaging: Action input (ubuntu-latest, default)	1m 12s
Packaging: Action input (windows-latest, default)	4m 36s
Packaging: Action input (windows-latest, linked)	4m 29s
Packaging: Action input (ubuntu-latest, nightly-latest)	1m 26s
Packaging: Action input (macos-latest, default)	2m 16s
Packaging: Action input (macos-latest, nightly-latest)	3m 9s
Packaging: Action input (ubuntu-latest, linked)	1m 29s
Packaging: Action input (windows-latest, nightly-latest)	4m 5s
Packaging: Action input (macos-latest, linked)	2m 9s
	52m 44s

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