feat: add allow prerelease flag #3919

Job	Run time
Generate Matrix	4s
Test Alpine Linux	0s
Test Cross Compile	0s
Test Auditwheel	0s
Test Docker	0s
Test Bootstrap (ubuntu-latest)	8s
Test Emscripten	0s
Test MSRV	45s
Test Bootstrap (macos-14)	7s
Test Bootstrap (windows-latest)	12s
Check ${{ matrix.platform.target }}	0s
Test Pyston	0s
Test downstream - ${{ matrix.downstream.repository }}	0s
Test (ubuntu-latest, 3.12)	28m 18s
Test (ubuntu-latest, pypy3.10)	11m 44s
Test (macos-14, 3.12)	8m 44s
Test (windows-latest, 3.12)	20m 38s
Test (windows-latest, pypy3.10)	21m 0s
conclusion	2s
	1h 31m 42s

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