Update javadoc.yml

Author: aalaqily

.github/workflows/javadoc.yml

@@ -11,6 +11,13 @@ jobs:
       contents: read
 
     steps:
+    - uses: actions/checkout@v4
+    - name: Set up JDK 17
+      uses: actions/setup-java@v4
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+        
     - name: Setup Gradle
       uses: gradle/actions/setup-gradle@af1da67850ed9a4cedd57bfd976089dd991e2582 # v4.0.0