Django Integration complex url regex pattern cleanup

[PeterW-LWL]

Problem Statement

When using pythons sentry_sdk with Django and DjangoCMS using the default configuration for the DjangoIntegration I get a transactions {slug},w/]+)/.
This comes from the complex regex '^(?P<slug>[$\\-_.+!*(),\\w//]+)/$' which comes from DjangoCMS urls.py constants.py.

I expect even a complex regex like the above to get cleaned to just /{slug}/

Solution Brainstorm

Improve the regex filter in

sentry-python/sentry_sdk/integrations/django/transactions.py

Line 48 in 9857bc9

def _simplify(self, pattern):

Maybe even add a spezial case for this complex regex from DjangoCMS.

[sentrivana]

Reopening this since we'll be reverting the related PR. See #2392 (comment) for more info.

[antonpirker]

As this is about transaction names and we are in the middle of switching the performance instrumentation (the part in the SDK that creates transactions) to OpenTelemetry, this problem will be solved in the next major, because then the Sentry SDK will use OpenTelementry under the hood to create those transactions and OpenTelementry will set those transaction names.