Regenerate homegraph client (googleapis#5824)

This PR was generated using Autosynth. 🌈


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

```
2020-09-02 03:49:15,179 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/google-api-java-client-services/synth.py.
On branch autosynth-homegraph
nothing to commit, working tree clean
2020-09-02 03:49:15,528 synthtool [DEBUG] > Cloning https://github.com/googleapis/discovery-artifact-manager.git.
DEBUG:synthtool:Cloning https://github.com/googleapis/discovery-artifact-manager.git.
2020-09-02 03:49:15,904 synthtool [DEBUG] > Cleaning output directory.
DEBUG:synthtool:Cleaning output directory.
2020-09-02 03:49:15,907 synthtool [DEBUG] > Installing dependencies.
DEBUG:synthtool:Installing dependencies.
2020-09-02 03:49:17,607 synthtool [INFO] > Generating homegraph v1.
INFO:synthtool:Generating homegraph v1.
2020-09-02 03:49:17,608 synthtool [INFO] > 	1.30.1
INFO:synthtool:	1.30.1
WARNING:root:object without properties Empty: OrderedDict([(u'properties', OrderedDict()), (u'type', u'object'), (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 `{}`.'), (u'id', u'Empty')])
WARNING:root:object without properties RequestSyncDevicesResponse: OrderedDict([(u'description', u'Response type for the [`RequestSyncDevices`](#google.home.graph.v1.HomeGraphApiService.RequestSyncDevices) call. Intentionally empty upon success. An HTTP response code is returned with more details upon failure.'), (u'type', u'object'), (u'id', u'RequestSyncDevicesResponse'), (u'properties', OrderedDict())])
Writing json metadata to clients/google-api-services-homegraph/v1.metadata.json
2020-09-02 03:49:18,206 synthtool [DEBUG] > Wrote metadata to clients/google-api-services-homegraph/synth.metadata.
DEBUG:synthtool:Wrote metadata to clients/google-api-services-homegraph/synth.metadata.

```
</details>

Full log will be available here:
https://source.cloud.google.com/results/invocations/98627463-8369-44a0-bc03-b63b09216569/targets

- [ ] To automatically regenerate this PR, check this box.

Author: yoshi-automation

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

@@ -2,6 +2,6 @@
   "maven": {
     "groupId": "com.google.apis",
     "artifactId": "google-api-services-homegraph",
-    "version": "v1-rev20200810-1.30.10"
+    "version": "v1-rev20200827-1.30.10"
   }
 }

clients/google-api-services-homegraph/v1/1.30.1/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-homegraph</artifactId>
-      <version>v1-rev20200810-1.30.10</version>
+      <version>v1-rev20200827-1.30.10</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  compile 'com.google.apis:google-api-services-homegraph:v1-rev20200810-1.30.10'
+  compile 'com.google.apis:google-api-services-homegraph:v1-rev20200827-1.30.10'
 }
 ```
 

clients/google-api-services-homegraph/v1/1.30.1/com/google/api/services/homegraph/v1/HomeGraphServiceScopes.java

@@ -0,0 +1,42 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+/*
+ * This code was generated by https://github.com/googleapis/google-api-java-client-services/
+ * Modify at your own risk.
+ */
+
+package com.google.api.services.homegraph.v1;
+
+/**
+ * Available OAuth 2.0 scopes for use with the HomeGraph API.
+ *
+ * @since 1.4
+ */
+public class HomeGraphServiceScopes {
+
+  /** New Service: https://www.googleapis.com/auth/homegraph. */
+  public static final String HOMEGRAPH = "https://www.googleapis.com/auth/homegraph";
+
+  /**
+   * Returns an unmodifiable set that contains all scopes declared by this class.
+   *
+   * @since 1.16
+   */
+  public static java.util.Set<String> all() {
+    java.util.Set<String> set = new java.util.HashSet<String>();
+    set.add(HOMEGRAPH);
+    return java.util.Collections.unmodifiableSet(set);
+  }
+
+  private HomeGraphServiceScopes() {
+  }
+}

clients/google-api-services-homegraph/v1/1.30.1/pom.xml

@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-homegraph</artifactId>
-  <version>v1-rev20200810-1.30.10</version>
-  <name>HomeGraph API v1-rev20200810-1.30.10</name>
+  <version>v1-rev20200827-1.30.10</version>
+  <name>HomeGraph API v1-rev20200827-1.30.10</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>