ci: create CI to check Java 20 validation

Signed-off-by: Otavio Santana <otaviopolianasantana@gmail.com>

.github/java-20.yml

@@ -0,0 +1,25 @@
+# This workflow will build a Java project with Maven
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+
+name: Java 20 CI with Maven
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up JDK 20
+      uses: actions/setup-java@v3
+      with:
+        distribution: 'temurin'
+        java-version: 20
+    - name: Build with Maven
+      run: mvn -B package --file pom.xml