Move GeminiMockServer into shared module

Author: kabir

samples/java/agents/content_editor/pom.xml

@@ -47,6 +47,12 @@
             <artifactId>wiremock</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>com.samples.a2a</groupId>
+            <artifactId>test-utils</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>io.github.a2asdk</groupId>
             <artifactId>a2a-java-sdk-client</artifactId>

samples/java/agents/content_writer/pom.xml

@@ -47,6 +47,12 @@
             <artifactId>wiremock</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>com.samples.a2a</groupId>
+            <artifactId>test-utils</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>io.github.a2asdk</groupId>
             <artifactId>a2a-java-sdk-client</artifactId>

samples/java/agents/content_writer/src/test/java/com/samples/a2a/test/GeminiMockServer.java

@@ -53,6 +53,12 @@
             <artifactId>wiremock</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>com.samples.a2a</groupId>
+            <artifactId>test-utils</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>

samples/java/agents/dice_agent_multi_transport/server/pom.xml

@@ -61,6 +61,12 @@
             <artifactId>wiremock</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>com.samples.a2a</groupId>
+            <artifactId>test-utils</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>io.github.a2asdk</groupId>
             <artifactId>a2a-java-sdk-client</artifactId>