feat(integrations): Support gql 4.0-style execute

[sentrivana]

gql 4.0 changed the signature of the execute function which we were patching. Instead of a DocumentNode it now gets a GraphQLRequest (which contains the document attribute with the DocumentNode). This means we need to update the way we're extracting additional data in the event processor.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.49%. Comparing base (5a122b5) to head (f97406c).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4779      +/-   ##
==========================================
+ Coverage   84.47%   84.49%   +0.01%     
==========================================
  Files         158      158              
  Lines       16506    16513       +7     
  Branches     2865     2866       +1     
==========================================
+ Hits        13944    13952       +8     
+ Misses       1712     1709       -3     
- Partials      850      852       +2     

Files with missing lines	Coverage Δ
sentry_sdk/integrations/gql.py	84.81% <100.00%> (-1.31%)	⬇️

... and 3 files with indirect coverage changes