add missing iam dependencies

Author: mpeddada1

java-bigqueryreservation/proto-google-cloud-bigqueryreservation-v1/pom.xml

@@ -29,5 +29,13 @@
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
     </dependency>
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>proto-google-iam-v1</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>grpc-google-iam-v1</artifactId>
+    </dependency>
   </dependencies>
 </project>