deps: update dependency com.google.code.gson:gson to v2.8.8 (#622)

Author: renovate-bot

aiplatform/snippets/pom.xml

@@ -43,7 +43,7 @@
     <dependency>
       <groupId>com.google.code.gson</groupId>
       <artifactId>gson</artifactId>
-      <version>2.8.7</version>
+      <version>2.8.8</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>