Pyzeebe

Changes

- Add support for camunda cloud 1.1
- Add a new parameter called `region` to `CamundaCloudCredentials`

Fixes

* Fix grpc timeout bug - see 178

Fixes

* Change the watcher to check for consecutive errors per task thread - (merged 139, see 138 for further information)

Changes

- Official support for zeebe 0.26.0.0
- Start watcher thread that reactivates stopped threads 112.
- Add boolean parameter called `watch` to `ZeebeWorker.work` to start the watcher thread. This will by default be disabled.
- Give up on connection to zeebe gateway after configured amount 75.
- Add parameter to `ZeebeWorker` and `ZeebeClient` constructor called `max_connection_retries`.

Enhancements

- Use pytest fixtures to simplify tests.

Changes

- Give threads names - 77
- Add `wait` parameter for `worker.stop` - 76

Deprecations

- Remove python 3.5 support

Dependencies

* Package dependencies:
- zeebe-grpc: 0.24.3.3 -> 0.25.1.0
- Removed grpcio and protobuf from dependencies as they're included in zeebe-grpc

* Development dependencies:
- pytest: 6.1.1 -> 6.2.1
- sphinx: 3.2.1 -> 3.4.2
- sphinx-rtd-theme: 0.5.0 -> 0.5.1
- coveralls: 2.1.2 -> 2.2.0
- importlib-metadata: 2.0.0 -> 3.3.0
- coverage: 5.3 -> 5.3.1

Changes

- Using a named logger. This means `pyzeebe` logging levels can now be set using:
python
logging.getLogger("pyzeebe").setLevel(logging.WARNING)