Publish CLI binaries for cargo-binstall

[esimkowitz]

Summary

This PR adds a workflow that will run on every new release to generate binaries of the CLI for Windows, Linux, and macOS. It will then upload these binaries to the release, along with a SHA. This also adds new metadata to the dioxus-cli crate so that cargo-binstall can find the published artifacts.

Reason

The goal of this PR is to publish binaries that can be used in downstream partners' GitHub Actions workflows. By using the install-action, which uses cargo-binstall under the hood, developers can quickly install the latest CLI binary.

Here's a shorthand for installing the CLI using that action:

- uses: taiki-e/install-action@dioxus-cli

Caveats

Note that I have not tested the install via cargo-binstall yet as I do not have permissions to publish a new version of the package, though I have tested that it publishes the binaries to the GitHub Release.

[esimkowitz]

this resolves #1331

[esimkowitz]

I found a simpler approach that uses the upload-rust-binary-action, which is from the same dev as the install-action mentioned above. This can handle the build and upload in a single action. I tried to add support for ARM Mac binaries as well but ran into a cross-compilation issue due to git2-rs's dependency on system installations of openssl (see rust-lang/git2-rs#623 for more info). It looks like GitHub is adding support for ARM Mac runners by the end of the year though, so we can add support for those then.

[esimkowitz]

I've also updated the toolchain install step to use a new action as the actions-rs organization and repos appear to be unmaintained since 2020. I've opened another issue #1360 to track replacing the action in the other pipelines.

[ealmloff]

This looks great! This should make the docsite builds a lot shorter

Thank you!