deps: update dependency com.google.code.gson:gson to v2.12.1

Author: renovate-bot

pom.xml

@@ -551,7 +551,7 @@
     <project.appengine.version>2.0.32</project.appengine.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.jsr305.version>3.0.2</project.jsr305.version>
-    <project.gson.version>2.11.0</project.gson.version>
+    <project.gson.version>2.12.1</project.gson.version>
     <project.jackson-core2.version>2.18.2</project.jackson-core2.version>
     <project.protobuf-java.version>3.21.12</project.protobuf-java.version>
     <project.guava.version>30.1.1-android</project.guava.version>