Bump gson from 2.8.8 to 2.8.9 in /wayang-commons (#234)

Bumps [gson](https://github.com/google/gson) from 2.8.8 to 2.8.9.
- [Release notes](https://github.com/google/gson/releases)
- [Changelog](https://github.com/google/gson/blob/master/CHANGELOG.md)
- [Commits](https://github.com/google/gson/compare/gson-parent-2.8.8...gson-parent-2.8.9)

---
updated-dependencies:
- dependency-name: com.google.code.gson:gson
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/wayang-commons/pom.xml b/wayang-commons/pom.xml
index a0f1d18..fdb0e20 100644
--- a/wayang-commons/pom.xml
+++ b/wayang-commons/pom.xml
@@ -200,7 +200,7 @@
             <dependency>
                 <groupId>com.google.code.gson</groupId>
                 <artifactId>gson</artifactId>
-                <version>2.8.8</version>
+                <version>2.8.9</version>
             </dependency>
         </dependencies>
     </dependencyManagement>