Fix java 17 migration warnings

pom.xml

@@ -6,6 +6,8 @@
     <properties>
         <com.wisemapping.version>5.0.21-SNAPSHOT</com.wisemapping.version>
         <superpom.dir>${project.basedir}/wise-webapps</superpom.dir>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
     </properties>
 
     <scm>
@@ -117,10 +119,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.11.0</version>
                 <configuration>
-                    <source>17</source>
-                    <target>17</target>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>