Remove sha1 from default features in gix-hash

[cruessler]

• feat!: remove sha1 from default features in gix-hash

• Adapt to sha1 not being default feature of gix-hash

• Make gix depend on gix-hash with sha1 enabled

This PR removes sha1 from gix-hash’s default features. It adds a feature sha1 to all depending crates that did not compile anymore after the removal. Now, just check passes and I want to get feedback from CI to see where else I need to adapt to these changes.

This PR also adds sha1 to features in the [package.metadata.docs.rs] section of all crates that now have a feature flag sha1.

This PR is part of #281.

[Byron]

Thanks a lot for keeping the sha256-ball rolling!

Actually this is really nice as it reveals crates with a direct relationship to gix-hash, which then can probably be a focus for testing as well.

I will go back into hiding until the PR comes out of draft.

[cruessler]

Quick status update: I believe I’ve now made all the follow-up changes necessary to make CI green. The last test failure seems not related to my changes as far as I can tell. I plan on updating the description soon, giving a higher-level overview of all the changes and some observations I made along the way.

[EliahKagan]

Quick status update: I believe I’ve now made all the follow-up changes necessary to make CI green.

That seems likely--I just reran the one failed job and it succeeded.

[chatgpt-codex-connector]

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[Byron]

Review Notes

• gix also must make the default hashes configurable, as users should be able to turn it off by not enabling default features.
• in order to build crate documentation successfully, all crates now have to forward sha1 effectively to configure docs.rs to set it.