Java 11 compatible SDK (#5128)

Author: andreaTP

java-sdk/pom.xml

@@ -27,6 +27,8 @@
     <projectRoot>${project.basedir}/..</projectRoot>
     <kiota.libs.version>1.3.0</kiota.libs.version>
     <kiota.community.version>0.0.18</kiota.community.version>
+    <maven.compiler.source>11</maven.compiler.source>
+    <maven.compiler.target>11</maven.compiler.target>
     <kiota.base.url>https://github.com/microsoft/kiota/releases/download</kiota.base.url>
   </properties>
   <dependencies>