Release process

The release process is different from mozilla/uniffi-rs. Fork is not published to crates.io. cargo-release is needed to make a release.

cargo install cargo-release

Following versioning semver rules, select the next version, e.g:
```
0.2.0+v0.25.0
```
Create a new branch for PR.
```
git checkout -b bump-X.Y.Z+vA.B.C
```
Update changelog in CHANGELOG.md to include the changes that were made since last version. Commit the changelog with message Update CHANGELOG.md.

Update version numbers in Cargo.toml files, creates a commit.

cargo release-backend-crates --no-publish --no-tag --execute X.Y.Z+vA.B.C
cargo release-uniffi --no-publish --no-tag --execute X.Y.Z+vA.B.C

Push the branch and make a PR.

git push --set-upstream origin bump-X.Y.Z+vA.B.C

Create a tag once the PR is approved and merged. Use either Github GUI or command line.
```
git checkout main
git pull
git tag X.Y.Z+vA.B.C
git push origin X.Y.Z+vA.B.C
```