Scout-apm

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

Added
- Added Django 4.1 to the testing matrix.
- Added support for Elasticsearch v8+.
([Issue 725](https://github.com/scoutapp/scout_apm_python/issues/725))

Fixed
- Catch SIGQUIT and SIGTERM errors when running core agent. They will now
be logged as debug messages rather than exceptions.

Added

Fixed
- Always return a tuple from ``filepaths``.
([Issue 737](https://github.com/scoutapp/scout_apm_python/issues/737))

Added

Fixed
- Return the full path for backtraces that are used by the core-agent and
APM product. The error stacktraces now prepend the SCM_DIRECTORY setting
if it has been set.
([Issue 723](https://github.com/scoutapp/scout_apm_python/issues/723))

Added

Fixed
- Avoid assuming Celery tasks will have a truth-y `delivery_info` property.
([Issue 731](https://github.com/scoutapp/scout_apm_python/issues/731))

Added
- Add `log_payload_content` to support logging the content of the message
being sent to either the core agent socket or the error service.
([Issue 724](https://github.com/scoutapp/scout_apm_python/issues/724))

Fixed