Integrate datafaker 1.9.0 into MockDataGenerator and add IT_MockRoute integration test

Agent-Logs-Url: https://github.com/OpenIdentityPlatform/OpenIG/sessions/145b9565-daac-42f5-849e-1a38a73bf63f

Co-authored-by: vharseko <6818498+vharseko@users.noreply.github.com>

Author: Copilot

openig-core/pom.xml

@@ -166,6 +166,11 @@
       <artifactId>swagger-request-validator-core</artifactId>
       <version>2.46.0</version>
     </dependency>
+    <dependency>
+      <groupId>net.datafaker</groupId>
+      <artifactId>datafaker</artifactId>
+      <version>1.9.0</version>
+    </dependency>
 
     <!-- test dependencies -->
     <dependency>