fix common module paths

Author: chingor13

.kokoro/common.sh

@@ -420,13 +420,13 @@ function install_modules() {
       'java-iam/grpc-google-iam-v3beta'
       'java-iam/proto-google-iam-v1'
       'java-iam/proto-google-iam-v2'
+      'java-iam/proto-google-iam-v2beta'
+      'java-iam/proto-google-iam-v3'
+      'java-iam/proto-google-iam-v3beta'
       'sdk-platform-java/java-shared-dependencies'
       'sdk-platform-java/java-shared-dependencies/first-party-dependencies'
       'sdk-platform-java/java-shared-dependencies/third-party-dependencies'
       'sdk-platform-java/gapic-generator-java-bom'
-      'sdk-platform-java/java-iam/proto-google-iam-v2beta'
-      'sdk-platform-java/java-iam/proto-google-iam-v3'
-      'sdk-platform-java/java-iam/proto-google-iam-v3beta'
       'sdk-platform-java/java-core/google-cloud-core-bom'
       'sdk-platform-java/java-core/google-cloud-core'
       'sdk-platform-java/java-core/google-cloud-core-grpc'