update config

pom.xml

@@ -7,12 +7,32 @@
   <version>1.0-SNAPSHOT</version>
   <name>ci-cd-app</name>
   <url>http://maven.apache.org</url>
+
+  <properties>
+    <maven.compiler.release>21</maven.compiler.release>
+    <maven-compiler-plugin.version>3.13.0</maven-compiler-plugin.version>
+    <junit-jupiter-engine.version>5.11.2</junit-jupiter-engine.version>
+  </properties>
+
   <dependencies>
     <dependency>
       <groupId>org.junit.jupiter</groupId>
       <artifactId>junit-jupiter-engine</artifactId>
-      <version>5.11.2</version>
+      <version>${junit-jupiter-engine.version}</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>${maven-compiler-plugin.version}</version>
+        <configuration>
+          <release>${maven.compiler.release}</release>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>