Bump gson from 2.8.5 to 2.8.6

Bumps [gson](https://github.com/google/gson) from 2.8.5 to 2.8.6.
- [Release notes](https://github.com/google/gson/releases)
- [Changelog](https://github.com/google/gson/blob/master/CHANGELOG.md)
- [Commits](google/gson@gson-parent-2.8.5...gson-parent-2.8.6)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

build.gradle

@@ -49,7 +49,7 @@ repositories {
 
 dependencies {
     compileOnly group: 'cd.go.plugin', name: 'go-plugin-api', version: project.pluginDesc.goCdVersion
-    compile group: 'com.google.code.gson', name: 'gson', version: '2.8.5'
+    compile group: 'com.google.code.gson', name: 'gson', version: '2.8.6'
     compile group: 'com.google.guava', name: 'guava', version: '23.0'
     compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.9'