Fall back to distributions without hashes in resolver #4764

Job	Run time
check windows trampoline	3m 41s
cargo fmt	24s
build binary \| macos aarch64	1m 8s
build binary \| linux	1m 21s
build binary \| macos x86_64	1m 47s
build binary \| windows	1m 23s
cargo clippy (ubuntu-latest)	54s
cargo test \| ubuntu	4m 14s
cargo clippy (windows-latest)	2m 39s
cargo test \| windows	5m 48s
cargo test \| macos	4m 8s
check system \| homebrew python on macos aarch64	16s
check cache \| macos aarch64	11s
check system \| python on macos aarch64	18s
ecosystem test \| prefecthq/prefect	1m 50s
ecosystem test \| pallets/flask	10s
check system \| python on debian	38s
check cache \| ubuntu	1m 1s
check system \| alpine	19s
check system \| python on fedora	1m 0s
check system \| python via pyenv	1m 37s
check system \| pypy on ubuntu	18s
check system \| pyston	3m 51s
check system \| python on ubuntu	11s
check system \| amazonlinux	25s
check system \| python on centos	0s
check system \| python3.13 on windows	1m 34s
check system \| python3.12 via chocolatey	1m 33s
check system \| conda3.8 on linux	4m 29s
check system \| python3.10 on windows	46s
check system \| python3.10 on windows x86	48s
check system \| conda3.11 on linux	45s
check system \| conda3.8 on windows	1m 51s
check system \| conda3.11 on windows	3m 0s
check system \| conda3.8 on macos	39s
check system \| conda3.11 on macos	39s
check system \| python on macos x86_64	22s
	55m 58s

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