Regenerate doubleclickbidmanager client (googleapis#7291)

This PR was generated using Autosynth. 🌈


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

```
2021-03-17 03:47:54,524 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/google-api-java-client-services/synth.py.
On branch autosynth-doubleclickbidmanager
nothing to commit, working tree clean
2021-03-17 03:47:54,969 synthtool [DEBUG] > Cloning https://github.com/googleapis/discovery-artifact-manager.git.
DEBUG:synthtool:Cloning https://github.com/googleapis/discovery-artifact-manager.git.
2021-03-17 03:47:55,421 synthtool [DEBUG] > Cleaning output directory.
DEBUG:synthtool:Cleaning output directory.
2021-03-17 03:47:55,423 synthtool [DEBUG] > Installing dependencies.
DEBUG:synthtool:Installing dependencies.
2021-03-17 03:47:57,112 synthtool [INFO] > Generating doubleclickbidmanager v1.
INFO:synthtool:Generating doubleclickbidmanager v1.
2021-03-17 03:47:57,112 synthtool [INFO] > 	1.31.0
INFO:synthtool:	1.31.0
Writing json metadata to clients/google-api-services-doubleclickbidmanager/v1.metadata.json
2021-03-17 03:47:57,833 synthtool [INFO] > Generating doubleclickbidmanager v1.1.
INFO:synthtool:Generating doubleclickbidmanager v1.1.
2021-03-17 03:47:57,833 synthtool [INFO] > 	1.31.0
INFO:synthtool:	1.31.0
Writing json metadata to clients/google-api-services-doubleclickbidmanager/v1.1.metadata.json
2021-03-17 03:47:58,704 synthtool [DEBUG] > Wrote metadata to clients/google-api-services-doubleclickbidmanager/synth.metadata.
DEBUG:synthtool:Wrote metadata to clients/google-api-services-doubleclickbidmanager/synth.metadata.

```
</details>

Full log will be available here:
https://source.cloud.google.com/results/invocations/a6f3ed0d-3c25-4ba2-9e0d-0edbaf787bf3/targets

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

Author: yoshi-automation

clients/google-api-services-doubleclickbidmanager/v1.1.metadata.json

@@ -2,6 +2,6 @@
   "maven": {
     "groupId": "com.google.apis",
     "artifactId": "google-api-services-doubleclickbidmanager",
-    "version": "v1.1-rev20210209-1.31.0"
+    "version": "v1.1-rev20210315-1.31.0"
   }
 }

clients/google-api-services-doubleclickbidmanager/v1.1/1.31.0/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-doubleclickbidmanager</artifactId>
-      <version>v1.1-rev20210209-1.31.0</version>
+      <version>v1.1-rev20210315-1.31.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  compile 'com.google.apis:google-api-services-doubleclickbidmanager:v1.1-rev20210209-1.31.0'
+  compile 'com.google.apis:google-api-services-doubleclickbidmanager:v1.1-rev20210315-1.31.0'
 }
 ```
 

clients/google-api-services-doubleclickbidmanager/v1.1/1.31.0/pom.xml

@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-doubleclickbidmanager</artifactId>
-  <version>v1.1-rev20210209-1.31.0</version>
-  <name>DoubleClick Bid Manager API v1.1-rev20210209-1.31.0</name>
+  <version>v1.1-rev20210315-1.31.0</version>
+  <name>DoubleClick Bid Manager API v1.1-rev20210315-1.31.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>