Celery beat exclude option

[antonpirker]

Adds a exclude_beat_tasks option to CeleryIntegration where users can exclude Celery Beat tasks from being auto-instrumented.

Fixes #2119

Documentation PR: getsentry/sentry-docs#6995

[antonpirker]

I extracted a new function (match_regex_list) from how the matching of trace_propagation_targets works right now to reuse the behavior.

One possible foot gun:
In trace_propagation_targets we do sub-string matches (as described in the documentation: https://docs.sentry.io/platforms/python/configuration/options/#trace-propagation-targets)

This could lead to unintended matches if you have two tasks task-a and task-a-b and you set exclude_beat_tasks=["task-a"] it will exclude task-a and task-a-b.

Not the best developer experience, but it is the behavior we have no in trace_propagation_targets.

[antonpirker]

Changed to always match the full task names.