v0.3.1

Add write permissions to release workflow (#17)

* Fix 403 error in release workflow

Added `permissions: contents: write` to the release job in .github/workflows/build-and-test.yml.
This allows the release action to create releases and upload artifacts.

* Fix 403 error in release workflow and allow testing tags

1. Added `permissions: contents: write` to the release job in .github/workflows/build-and-test.yml to fix 403 error.
2. Updated `on: push: tags` to `*` to allow testing with any tag.

* Fix 403 error in release workflow

Added `permissions: contents: write` to the release job in .github/workflows/build-and-test.yml.
This allows the release action to create releases and upload artifacts.

* Fix release permissions and enable abi3 support

1. Add `permissions: contents: write` to the release workflow to fix 403 errors.
2. Enable `abi3-py37` feature in `Cargo.toml` to generate Python wheels compatible with Python 3.7+ (abi3).

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Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>