Airflow-provider-hightouch

- Introduces HightouchSyncRunSensor, which monitors the success or failure of a sync run
- Adds a return value to HightouchTriggerSyncOperator

Fixes:

- Fixes issue with repeated warnings when using multiple HTTP connections

Fixes:

- Correctly log parsed Sync run output

This is a new API with some breaking changes. Please read the changes carefully
before upgrading!

NEW:

- Uses the new Hightouch API Endpoint. This endpoint is now idempotent and more
reliable and flexible.

- Can trigger sync via ID or via Slug

- Logs information about the number of rows added, changed, and remove along
with other sync run details

BREAKING:

- Syncs are now synchronous by default, use `synchronous=False` for async
operations.

- 9 Fixes a bug with a missing f in logging unhandled states, and a bug
in an assertion test

- Adds support for the queued status from the API