Enable Openapi 3.1.0

[staticdev]

Closes #818

[codecov]

Codecov Report

Merging #844 (7f92084) into main (a719c87) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main      #844   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           49        49           
  Lines         1918      1918           
=========================================
  Hits          1918      1918           

Files Changed	Coverage Δ
..._client/schema/openapi_schema_pydantic/__init__.py	100.00% <ø> (ø)
...lient/schema/openapi_schema_pydantic/components.py	100.00% <ø> (ø)
...n_client/schema/openapi_schema_pydantic/contact.py	100.00% <ø> (ø)
...nt/schema/openapi_schema_pydantic/discriminator.py	100.00% <ø> (ø)
..._client/schema/openapi_schema_pydantic/encoding.py	100.00% <ø> (ø)
...n_client/schema/openapi_schema_pydantic/example.py	100.00% <ø> (ø)
.../openapi_schema_pydantic/external_documentation.py	100.00% <ø> (ø)
...on_client/schema/openapi_schema_pydantic/header.py	100.00% <ø> (ø)
...thon_client/schema/openapi_schema_pydantic/info.py	100.00% <ø> (ø)
...n_client/schema/openapi_schema_pydantic/license.py	100.00% <ø> (ø)
... and 18 more

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[pcppcp]

Thank you! Please merge this ASAP, with FastAPI's update to OAS 3.1 the client code generator is unusable.

[dbanty]

Per discussion in #818, we'll need to do more to support some 3.1 features before enabling. I've started that work in #856