Bump logging-interceptor from 3.11.0 to 4.9.1

Bumps [logging-interceptor](https://github.com/square/okhttp) from 3.11.0 to 4.9.1.
- [Release notes](https://github.com/square/okhttp/releases)
- [Changelog](https://github.com/square/okhttp/blob/master/CHANGELOG.md)
- [Commits](square/okhttp@parent-3.11.0...parent-4.9.1)

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

app/build.gradle

@@ -100,7 +100,7 @@ dependencies {
     implementation 'com.squareup.retrofit2:retrofit:2.9.0'
     implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
     implementation 'com.squareup.retrofit2:adapter-rxjava:2.9.0'
-    implementation 'com.squareup.okhttp3:logging-interceptor:3.11.0'
+    implementation 'com.squareup.okhttp3:logging-interceptor:4.9.1'
     implementation 'io.reactivex:rxjava:1.3.0'
     implementation 'com.journeyapps:zxing-android-embedded:3.6.0'
     implementation 'com.jakewharton:butterknife:10.2.3'