chore(deps): bump retrofit from 2.5.0 to 2.6.0 (#1909)

Bumps [retrofit](https://github.com/square/retrofit) from 2.5.0 to 2.6.0.
- [Release notes](https://github.com/square/retrofit/releases)
- [Changelog](https://github.com/square/retrofit/blob/master/CHANGELOG.md)
- [Commits](square/retrofit@parent-2.5.0...parent-2.6.0)

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

Co-authored-by: null <dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

app/build.gradle

@@ -149,7 +149,7 @@ dependencies {
     implementation "com.fasterxml.jackson.module:jackson-module-kotlin:2.9.6"
     implementation 'com.github.jasminb:jsonapi-converter:0.9'
     implementation 'com.squareup.okhttp3:logging-interceptor:3.14.2'
-    implementation 'com.squareup.retrofit2:retrofit:2.5.0'
+    implementation 'com.squareup.retrofit2:retrofit:2.6.0'
     implementation 'com.squareup.retrofit2:converter-jackson:2.5.0'
 
     // Cards Shimmer Animation