Add session in SpotifyAuthBase (#383)

Co-authored-by: XIS01536 <apozadel@extern.isban.es>
Co-authored-by: Stephane Bruckert <contact@stephanebruckert.com>

CHANGELOG.md

@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
     - status_retries
     - backoff_factor
  - Spin up a local webserver to auto-fill authentication URL
+ - Use session in SpotifyAuthBase
 
 ### Fixed