ci: improve maven workflows and add deployment

- Add descriptive step names in maven-build.yml
- Remove redundant comments in maven-build.yml
- Add new maven-deploy.yml workflow for Maven Central deployment

Author: codeboyzhou

.github/workflows/maven-build.yml

@@ -14,19 +14,19 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - name: Git Checkout
+        uses: actions/checkout@v4
 
-      # Build with JDK 17
       - name: Set up JDK 17
         uses: actions/setup-java@v4
         with:
           cache: maven
           java-version: '17'
           distribution: 'temurin'
+
       - name: Build with Maven
         run: mvn -B package --file pom.xml
 
-      # Upload coverage reports to Codecov
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v5
         with:

.github/workflows/maven-deploy.yml

@@ -0,0 +1,34 @@
+name: Maven Deploy
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  deploy:
+    name: maven deploy
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Git Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          cache: maven
+          java-version: '17'
+          distribution: 'temurin'
+          server-id: central # <publishingServerId> in pom.xml
+          server-username: MAVEN_USERNAME
+          server-password: MAVEN_PASSWORD
+          gpg-private-key: ${{ secrets.GPG_PRIVATE_KEY }}
+          gpg-passphrase: GPG_PASSPHRASE
+
+      - name: Deploy to Maven Central
+        run: mvn clean deploy -DskipTests -B
+        env:
+          MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
+          MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
+          GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}