v0.9.0

Improvements

• #39
• Added some logging around the backend init with version, and if it finds in-flight log events on init.
• Cleaned up deps which were otherwise pulled in with logflare_api_client.

Fixes

• Very occasionally log events were stuck in flight in the Repo. If the count of events stuck in flight was greater than the max_batch_size every single log event was in a separate request to Logflare, making every batch only contain one log event. This is fixed, and just in case we are checking for in-flight log events on boot, and resetting them such that they'll get sent to Logflare per usual.