v2021.6.17

What's Changed

• Add simple tests for EndpointHelper and EndpointSplitter (62fdaf0)

• Remove description field from ResponseType as it is always null (59057b0)

• Fix response type of endpoint-reorder-or-replace-playlists-tracks (a3696ee)
  Fix #80

• Fix release note generation (4fbbfa9)
  See #78