This PR changes the release process. Some parts are more complex, and
other parts I've simplified.
## Simplifications
* Combined `Create Release Commit` and `Create Python Release Commit`
into a single workflow. By default, it does a release of all packages,
but you can still choose to make just a Python or just Node/Rust release
through the arguments. This will make it rarer that we create a Node
release but forget about Python or vice-versa.
* Releases are automatically generated once a tag is pushed. This
eliminates the manual step of creating the release.
* Release notes are automatically generated and changes are categorized
based on the PR labels.
* Removed the use of `LANCEDB_RELEASE_TOKEN` in favor of just using
`GITHUB_TOKEN` where it wasn't necessary. In the one place it is
necessary, I left a comment as to why it is.
* Reused the version in `python/Cargo.toml` so we don't have two
different versions in Python LanceDB.
## New changes
* We now can create `preview` / `beta` releases. By default `Create
Release Commit` will create a preview release, but you can select a
"stable" release type and it will create a full stable release.
* For Python, pre-releases go to fury.io instead of PyPI
* `bump2version` was deprecated, so upgraded to `bump-my-version`. This
also seems to better support semantic versioning with pre-releases.
* `ci` changes will now be shown in the changelog, allowing changes like
this to be visible to users. `chore` is still hidden.
## Versioning
**NOTE**: unlike how it is in lance repo right now, the version in main
is the last one released, including beta versions.
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Co-authored-by: Lance Release <lance-dev@lancedb.com>
Co-authored-by: Weston Pace <weston.pace@gmail.com>
