revert jakarta version to 17 (was accidentally updated)

Signed-off-by: Gregor Zeitlinger <[email protected]>

Author: zeitlinger

prometheus-metrics-exporter-servlet-jakarta/pom.xml

@@ -19,7 +19,7 @@
 
   <properties>
     <automatic.module.name>io.prometheus.metrics.exporter.servlet.jakarta</automatic.module.name>
-    <java.version>25</java.version>
+    <java.version>17</java.version>
   </properties>
 
   <dependencies>