Bump gson from 2.8.6 to 2.10

Bumps [gson](https://github.com/google/gson) from 2.8.6 to 2.10.
- [Release notes](https://github.com/google/gson/releases)
- [Changelog](https://github.com/google/gson/blob/master/CHANGELOG.md)
- [Commits](google/gson@gson-parent-2.8.6...gson-parent-2.10)

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

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

build.gradle

@@ -18,7 +18,7 @@ buildscript {
 
         // Networking
         brotliVersion = '0.1.2'
-        gsonVersion = '2.8.6'
+        gsonVersion = '2.10'
         okhttpVersion = '4.9.0'
         retrofitVersion = '2.9.0'
         wireVersion = '4.1.0'