chore(deps): update dependency com.google.cloud:google-cloud-dms to v2.2.1 (googleapis#235)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-dms](https://github.com/googleapis/java-dms) | `2.2.0` -> `2.2.1` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-dms/2.2.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-dms/2.2.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-dms/2.2.1/compatibility-slim/2.2.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-dms/2.2.1/confidence-slim/2.2.0)](https://docs.renovatebot.com/merge-confidence/) |

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Author: renovate-bot

java-dms/README.md

@@ -19,20 +19,20 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-dms</artifactId>
-  <version>2.2.0</version>
+  <version>2.2.1</version>
 </dependency>
 ```
 
 If you are using Gradle without BOM, add this to your dependencies
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-dms:2.2.0'
+implementation 'com.google.cloud:google-cloud-dms:2.2.1'
 ```
 
 If you are using SBT, add this to your dependencies
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-dms" % "2.2.0"
+libraryDependencies += "com.google.cloud" % "google-cloud-dms" % "2.2.1"
 ```
 
 ## Authentication

java-dms/samples/install-without-bom/pom.xml

@@ -29,7 +29,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-dms</artifactId>
-      <version>2.2.0</version>
+      <version>2.2.1</version>
     </dependency>
     <!-- [END dms_install_without_bom] -->
 

java-dms/samples/snapshot/pom.xml

@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-dms</artifactId>
-      <version>2.2.0</version>
+      <version>2.2.1</version>
     </dependency>
   <!-- {x-version-update-end} -->
 

java-dms/samples/snippets/pom.xml

@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-dms</artifactId>
-      <version>2.2.0</version>
+      <version>2.2.1</version>
     </dependency>
 
     <dependency>