This upgrades edx-django-utils to a version that drops the newrelic
dependency. However, I also needed to fix a test that was sensitive to the
number of warnings that the code under test produced. With newrelic gone,
there's an additional warning.
- Fix test so that it isn't sensitive to unrelated warnings
- Fix typo in warning
For reference, this is the new warning:
```
"WARNING:edx_django_utils.monitoring.internal.backends:Could not load OPENEDX_TELEMETRY option 'edx_django_utils.monitoring.NewRelicBackend': Exception('Could not load New Relic monitoring backend; package not present.')"
```
This is expected due to edx-django-utils still defaulting to NR for
telemetry. (Perhaps the subject of a future breaking change.)
Open edX -------- This is the root package for Open edX. The intent is that all importable code from Open edX will eventually live here, including the code in the lms, cms, and common directories. If you're adding a new Django app, place it in core/djangoapps. If you're adding utilities that require Django, place them in core/djangolib. If you're adding code that defines no Django models or views of its own but is widely useful, put it in core/lib. Note: All new code should be created in this package, and the legacy code will be moved here gradually. For now the code is not structured like this, and hence legacy code will continue to live in a number of different packages.