Fix gql to work with graphql-core 3.3.0rc0

[leszekhanusz]

• Allow None values instead of empty tuples in graphql-core types
• add kind to the root types in the introspection query
• switch the order of kind and name in the introspection query types

Note: aiohttp dependency is temporarily restricted to <3.13.2 to avoid an unrelated error in the tests

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (7fb869a) to head (38e534f).
⚠️ Report is 61 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##            master      #597    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files           38        40     +2     
  Lines         2908      3322   +414     
==========================================
+ Hits          2908      3322   +414     

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