fix(deps): update dependency com.google.code.gson:gson to v2.13.1

Author: renovate[bot]

providers/flagd/pom.xml

@@ -85,7 +85,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.12.1</version>
+            <version>2.13.1</version>
         </dependency>
 
         <dependency>