docs: update release workflow in CONTRIBUTING.md (#4238)

CONTRIBUTING.md

@@ -208,19 +208,13 @@ Dependencies installation-related metrics base on publishing process, so the dat
 
 ---
 
-## Versioning
-
-We use [changesets] to manage version. Currently, all Rsbuild packages will use a fixed unified version.
-
-The release notes are automatically generated by [GitHub releases](https://github.com/web-infra-dev/rsbuild/releases).
-
 ## Releasing
 
-Repository maintainers can publish a new version of all packages to npm.
-
-Here are the steps to publish (we generally use CI for releases and avoid publishing npm packages locally):
+Repository maintainers can publish a new version of changed packages to npm.
 
-1. [Create release pull request](https://github.com/web-infra-dev/rsbuild/actions/workflows/release-pull-request.yml).
-2. [Run the release action](https://github.com/web-infra-dev/rsbuild/actions/workflows/release.yml).
-3. [Generate the release notes](https://github.com/web-infra-dev/rsbuild/releases).
-4. Merge the release pull request.
+1. Checkout a new release branch, for example `release_v1.2.0`
+2. Run [changesets](https://github.com/changesets/changesets) to bump changed packages and commit the changes.
+3. Create a pull request, the title should be `release: v1.2.0`.
+4. Run the [release action](https://github.com/web-infra-dev/rsbuild/actions/workflows/release.yml) to publish packages to npm.
+5. Generate the [release notes](https://github.com/web-infra-dev/rsbuild/releases) via GitHub, see [Automatically generated release notes](https://docs.github.com/en/repositories/releasing-projects-on-github/automatically-generated-release-notes)
+6. Merge the release pull request to `main`.