chore(deps): update dependency com.google.cloud:google-cloud-game-servers to v2.2.1 (googleapis#680)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-game-servers](https://togithub.com/googleapis/java-game-servers-v1beta) | `2.2.0` -> `2.2.1` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-game-servers/2.2.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-game-servers/2.2.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-game-servers/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-game-servers/2.2.1/confidence-slim/2.2.0)](https://docs.renovatebot.com/merge-confidence/) |

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java-game-servers/samples/install-without-bom/pom.xml

@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-game-servers</artifactId>
-      <version>2.2.0</version>
+      <version>2.2.1</version>
     </dependency>
     <!-- [END game_servers_install_without_bom] -->
     <dependency>

java-game-servers/samples/snippets/pom.xml

@@ -40,7 +40,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-game-servers</artifactId>
-      <version>2.2.0</version>
+      <version>2.2.1</version>
     </dependency>
     <dependency>
       <groupId>com.google.code.gson</groupId>