fix: OPTIC-1780: Ignoring PermissionDenied exceptions in Sentry

[mcanu]

This pull request includes changes to centralize the management of ignored exceptions for Sentry in the label_studio project. The most important changes are the addition of a new setting for ignored exceptions and the refactoring of the event processor to use this new setting.

Centralization of ignored exceptions:

• label_studio/core/settings/base.py: Added a new setting SENTRY_IGNORED_EXCEPTIONS to list exceptions that should be ignored by Sentry.

Refactoring to use the new setting:

• label_studio/core/utils/sentry.py: Modified the event_processor function to reference settings.SENTRY_IGNORED_EXCEPTIONS instead of hardcoding the list of ignored exceptions.

• Ignoring now PermissionDenied exception

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[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 77.20%. Comparing base (7487d6e) to head (f094dba).
Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
label_studio/core/utils/sentry.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #7172   +/-   ##
========================================
  Coverage    77.19%   77.20%           
========================================
  Files          187      187           
  Lines        14478    14479    +1     
========================================
+ Hits         11177    11179    +2     
+ Misses        3301     3300    -1     

Flag	Coverage Δ
pytests	77.20% <50.00%> (+<0.01%)	⬆️

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