Add release workflow

.github/workflows/release.yaml

@@ -0,0 +1,47 @@
+name: release
+
+on:
+  push:
+    tags:
+      - '**'
+
+env:
+  GRADLE_OPTS: "-Dorg.gradle.jvmargs=-Xmx4g -Dorg.gradle.daemon=false -Dkotlin.incremental=false"
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: 21
+
+      - name: Build and publish artifacts
+        env:
+          ORG_GRADLE_PROJECT_mavenCentralUsername: ${{ secrets.SONATYPE_NEXUS_USERNAME }}
+          ORG_GRADLE_PROJECT_mavenCentralPassword: ${{ secrets.SONATYPE_NEXUS_PASSWORD }}
+          ORG_GRADLE_PROJECT_signingInMemoryKey: ${{ secrets.ARTIFACT_SIGNING_PRIVATE_KEY }}
+        run: ./gradlew publish
+
+      - name: Extract release notes
+        id: release_notes
+        uses: ffurrer2/extract-release-notes@v2
+
+      - name: Create release
+        uses: ncipollo/release-action@v1
+        with:
+          body: ${{ steps.release_notes.outputs.release_notes }}
+          discussionCategory: Announcements
+
+      - run: ./gradlew prepareWebsite
+
+      - name: Deploy docs to website
+        uses: JamesIves/github-pages-deploy-action@releases/v3
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          BRANCH: site
+          FOLDER: build/docs/site
+          CLEAN: true