Merge pull request #4 from apache/dependabot/maven/com.google.code.gson-gson-2.8.9

Bump gson from 2.8.6 to 2.8.9
diff --git a/pom.xml b/pom.xml
index 720cf15..19bcddd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -35,7 +35,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.6</version>
+            <version>2.8.9</version>
             <scope>compile</scope>
         </dependency>