Scout-apm

Added
- "Operation" attribute added to TrackedRequest class to better support development of [scout_apm_python_logging](https://github.com/scoutapp/scout_apm_python_logging)

Added
- Updates Core Agent to v1.5.0
- Capture allocation metrics for Celery tasks
- Capture latency metrics for Celery tasks
- Send remaining batched payloads on receiving termination signals
Fixed
- Update the tag name and unit of time for job latency to similarly match that of request queue time.
- Handle change in exit codes for the core agent.

Fixed
- Core Agent fails to download on newer Mac OS/Apple Silicon (Issue 779)

Added
- Build wheels for Python 3.12

Version 3.0.0 drops support for Python 2.7 and < 3.8, as well as Django < 3.2.
If you need to continue using Python < 3.8 or Django < 3.2, please continue using v2.26.1.

Added
- Add formal support for Python 3.11 and Django 4.2.

Fixed
- Fix CI for 3.8+.
- Remove support for Python 2.7, 3.4, 3.5, 3.6.
- Remove support for Django < 3.2.
- Remove support for CherryPy, Nameko, and Pyramid.
- Update ElasticSearch support for 8.7.0 (``health_check``).
- Support flask_sqlalchemy v3. This requires an integration
change where ``instrument_sqlalchemy`` is called before ``db.init_app()``.

Fixed
- Wrap an import of elasticsearch in a try/except.
([Issue 744](https://github.com/scoutapp/scout_apm_python/issues/744))