Added javadoc workflow

Author: KartoffelChipss

.github/workflows/maven-javadoc.yml

@@ -0,0 +1,42 @@
+name: Deploy Maven Javadocs to GitHub Pages
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up JDK
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '21'
+
+      - name: Cache Maven repository
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+
+      - name: Build Javadocs
+        run: mvn clean javadoc:javadoc
+
+      - name: Add CNAME file
+        run: |
+          echo "jd.slz.zetaplugins.com" > target/reports/apidocs/CNAME
+
+      # Step 6: Deploy to GitHub Pages
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: target/reports/apidocs