Bump gson from 2.8.7 to 2.8.9

Bumps [gson](https://github.com/google/gson) from 2.8.7 to 2.8.9.
- [Release notes](https://github.com/google/gson/releases)
- [Changelog](https://github.com/google/gson/blob/master/CHANGELOG.md)
- [Commits](google/gson@gson-parent-2.8.7...gson-parent-2.8.9)

---
updated-dependencies:
- dependency-name: com.google.code.gson:gson
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle

@@ -69,7 +69,7 @@ configurations {
 
 dependencies {
   compileOnly group: 'cd.go.plugin', name: 'go-plugin-api', version: '21.4.0'
-  implementation group: 'com.google.code.gson', name: 'gson', version: '2.8.7'
+  implementation group: 'com.google.code.gson', name: 'gson', version: '2.8.9'
   implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.12.0'
   implementation group: 'commons-io', name: 'commons-io', version: '2.5'
   implementation group: 'commons-codec', name: 'commons-codec', version: '1.15'