deps: update dependency com.google.code.gson:gson to v2.9.1

Author: renovate-bot

samples/interactive-tutorials/pom.xml

@@ -62,7 +62,7 @@
     <dependency>
       <groupId>com.google.code.gson</groupId>
       <artifactId>gson</artifactId>
-      <version>2.9.0</version>
+      <version>2.9.1</version>
     </dependency>
     <dependency>
       <groupId>com.google.truth</groupId>