Merge pull request #2 from LajosPolya/dependabot/maven/com.google.code.gson-gson-2.8.9

Bump gson from 2.8.6 to 2.8.9

Author: LajosPolya

pom.xml

@@ -138,7 +138,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.6</version>
+            <version>2.8.9</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/com.squareup.okhttp3/okhttp -->