chore(deps): bump okhttp from 4.9.2 to 4.9.3

Bumps [okhttp](https://github.com/square/okhttp) from 4.9.2 to 4.9.3.
- [Release notes](https://github.com/square/okhttp/releases)
- [Changelog](https://github.com/square/okhttp/blob/master/CHANGELOG.md)
- [Commits](square/okhttp@parent-4.9.2...parent-4.9.3)

---
updated-dependencies:
- dependency-name: com.squareup.okhttp3:okhttp
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build.gradle

@@ -50,7 +50,7 @@ ext {
     materialDialogsVersion = '0.9.6.0'
     mpAndroidChartVersion = 'v3.1.0'
     navTabStripVersion = '1.0.4'
-    okHttpVersion = '4.9.2'
+    okHttpVersion = '4.9.3'
     picassoVersion = '2.71828'
     realmAdapter = '4.0.0'
     searchDialogVersion = '1.2.4'