Broader except in django parsed_body

[orhanhenrik]

We are seeing internal errors in the Sentry SDK if self.request.data fails. Specifically, it recently failed with rest_framework.exceptions.UnsupportedMediaType: Unsupported media type "" in request..

This exception should not prevent sentry from reporting the original error.

Similar to a previous fix I made #4001

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.56%. Comparing base (f8ec572) to head (c520622).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4189      +/-   ##
==========================================
- Coverage   79.59%   79.56%   -0.04%     
==========================================
  Files         141      141              
  Lines       15736    15736              
  Branches     2675     2675              
==========================================
- Hits        12525    12520       -5     
- Misses       2367     2369       +2     
- Partials      844      847       +3     

Files with missing lines	Coverage Δ
sentry_sdk/integrations/django/__init__.py	81.48% <100.00%> (ø)

... and 2 files with indirect coverage changes