Regenerate storage client (googleapis#9533)

This PR was generated using Autosynth. 🌈


<details><summary>Log from Synthtool</summary>

```
2021-08-20 04:02:21,832 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/google-api-java-client-services/synth.py.
On branch autosynth-storage
nothing to commit, working tree clean
2021-08-20 04:02:22,212 synthtool [DEBUG] > Cloning https://github.com/googleapis/discovery-artifact-manager.git.
DEBUG:synthtool:Cloning https://github.com/googleapis/discovery-artifact-manager.git.
2021-08-20 04:02:22,604 synthtool [DEBUG] > Cleaning output directory.
DEBUG:synthtool:Cleaning output directory.
2021-08-20 04:02:22,606 synthtool [DEBUG] > Installing dependencies.
DEBUG:synthtool:Installing dependencies.
2021-08-20 04:02:24,126 synthtool [INFO] > Generating storagetransfer v1.
INFO:synthtool:Generating storagetransfer v1.
2021-08-20 04:02:24,126 synthtool [INFO] > 	1.31.0
INFO:synthtool:	1.31.0
WARNING:root:object without properties CancelOperationRequest: OrderedDict([(u'description', u'The request message for Operations.CancelOperation.'), (u'type', u'object'), (u'id', u'CancelOperationRequest'), (u'properties', OrderedDict())])
WARNING:root:object without properties Empty: OrderedDict([(u'id', u'Empty'), (u'type', u'object'), (u'properties', OrderedDict()), (u'description', u'A generic empty message that you can re-use to avoid defining duplicated empty messages in your APIs. A typical example is to use it as the request or the response type of an API method. For instance: service Foo { rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty); } The JSON representation for `Empty` is empty JSON object `{}`.')])
WARNING:root:object without properties PauseTransferOperationRequest: OrderedDict([(u'description', u'Request passed to PauseTransferOperation.'), (u'id', u'PauseTransferOperationRequest'), (u'properties', OrderedDict()), (u'type', u'object')])
WARNING:root:object without properties ResumeTransferOperationRequest: OrderedDict([(u'id', u'ResumeTransferOperationRequest'), (u'description', u'Request passed to ResumeTransferOperation.'), (u'properties', OrderedDict()), (u'type', u'object')])
Writing json metadata to clients/google-api-services-storagetransfer/v1.metadata.json
2021-08-20 04:02:24,814 synthtool [INFO] > Generating storage v1.
INFO:synthtool:Generating storage v1.
2021-08-20 04:02:24,814 synthtool [INFO] > 	1.31.0
INFO:synthtool:	1.31.0
Writing json metadata to clients/google-api-services-storage/v1.metadata.json
2021-08-20 04:02:26,229 synthtool [DEBUG] > Wrote metadata to clients/google-api-services-storage/synth.metadata.
DEBUG:synthtool:Wrote metadata to clients/google-api-services-storage/synth.metadata.

```
</details>

Full log will be available here:
https://source.cloud.google.com/results/invocations/e491fb23-1251-428e-be40-a5bcb9068faa/targets

- [ ] To automatically regenerate this PR, check this box. (May take up to 24 hours.)

Author: yoshi-automation

clients/google-api-services-storagetransfer/v1.metadata.json

@@ -2,6 +2,6 @@
   "maven": {
     "groupId": "com.google.apis",
     "artifactId": "google-api-services-storagetransfer",
-    "version": "v1-rev20210726-1.32.1"
+    "version": "v1-rev20210812-1.32.1"
   }
 }

clients/google-api-services-storagetransfer/v1/1.31.0/README.md

@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-storagetransfer</artifactId>
-      <version>v1-rev20210726-1.32.1</version>
+      <version>v1-rev20210812-1.32.1</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  compile 'com.google.apis:google-api-services-storagetransfer:v1-rev20210726-1.32.1'
+  compile 'com.google.apis:google-api-services-storagetransfer:v1-rev20210812-1.32.1'
 }
 ```
 

clients/google-api-services-storagetransfer/v1/1.31.0/com/google/api/services/storagetransfer/v1/StoragetransferScopes.java

@@ -23,7 +23,7 @@
  */
 public class StoragetransferScopes {
 
-  /** See, edit, configure, and delete your Google Cloud Platform data. */
+  /** See, edit, configure, and delete your Google Cloud data and see the email address for your Google Account.. */
   public static final String CLOUD_PLATFORM = "https://www.googleapis.com/auth/cloud-platform";
 
   /**

clients/google-api-services-storagetransfer/v1/1.31.0/pom.xml

@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-storagetransfer</artifactId>
-  <version>v1-rev20210726-1.32.1</version>
-  <name>Storage Transfer API v1-rev20210726-1.32.1</name>
+  <version>v1-rev20210812-1.32.1</version>
+  <name>Storage Transfer API v1-rev20210812-1.32.1</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>

clients/google-api-services-storagetransfer/v1/1.31.0/resources/storagetransfer.v1.json

@@ -3,7 +3,7 @@
   "oauth2": {
    "scopes": {
     "https://www.googleapis.com/auth/cloud-platform": {
-     "description": "See, edit, configure, and delete your Google Cloud Platform data"
+     "description": "See, edit, configure, and delete your Google Cloud data and see the email address for your Google Account."
     }
    }
   }
@@ -434,7 +434,7 @@
    }
   }
  },
- "revision": "20210726",
+ "revision": "20210812",
  "rootUrl": "https://storagetransfer.googleapis.com/",
  "schemas": {
   "AwsAccessKey": {

clients/google-api-services-storagetransfer/v1/README.md

@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-storagetransfer</artifactId>
-      <version>v1-rev20210726-1.32.1</version>
+      <version>v1-rev20210812-1.32.1</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  compile 'com.google.apis:google-api-services-storagetransfer:v1-rev20210726-1.32.1'
+  compile 'com.google.apis:google-api-services-storagetransfer:v1-rev20210812-1.32.1'
 }
 ```