Enable rebuilding PRs with conflicts #7347

Job	Run time
Packaging: Config and input (macos-latest, linked)	1m 55s
Packaging: Config and input (windows-latest, linked)	3m 52s
Packaging: Config and input (macos-latest, nightly-latest)	2m 14s
Packaging: Config and input (ubuntu-latest, nightly-latest)	1m 34s
Packaging: Config and input (macos-latest, default)	1m 45s
Packaging: Config and input (windows-latest, default)	6m 6s
Packaging: Config and input (windows-latest, nightly-latest)	4m 1s
Packaging: Config and input (ubuntu-latest, linked)	1m 15s
Packaging: Config and input (ubuntu-latest, default)	1m 27s
	24m 9s

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