[chore] Update suffix within default properties of jdk21 in pom file

Author: stratika

pom.xml

@@ -39,9 +39,9 @@
         <properties>
             <!-- CI-friendly version: resolved by flatten-maven-plugin at build time -->
             <revision>0.4.0</revision>
-            <tornadovm.base.version>4.0.1</tornadovm.base.version>              <!-- TornadoVM base version (without jdk suffix) -->
-            <jdk.version.suffix></jdk.version.suffix>                           <!-- JDK Suffix: empty=JDK21, -jdk25=JDK25 -->
-            <tornadovm.version>${tornadovm.base.version}</tornadovm.version>    <!-- Default: JDK21 (no suffix) -->
+            <tornadovm.base.version>4.0.1</tornadovm.base.version>
+            <jdk.version.suffix>-jdk21</jdk.version.suffix>
+            <tornadovm.version>${tornadovm.base.version}${jdk.version.suffix}</tornadovm.version>
             <!-- Compiler defaults (overridden by JDK profiles below) -->
             <maven.compiler.source>25</maven.compiler.source>
             <maven.compiler.target>25</maven.compiler.target>