fix: type checking blocks

[billy-doyle]

the basic _resolve_forward_ref fix didn't work for more complicated imports and such. Likely a limitation with python but the below PR includes comprehensive tests around the changes and adds a cache for performance.

@marcosschroh sorry for the continued PR's here but really want to get the package working with no issues on 3.14

[codecov[bot]]

Codecov Report

:x: Patch coverage is 94.11765% with 4 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 97.55%. Comparing base (548a3e7) to head (5fbe108).

Files with missing lines	Patch %	Lines
dataclasses_avroschema/fields/fields.py	94.11%	4 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #920      +/-   ##
==========================================
- Coverage   99.44%   97.55%   -1.90%     
==========================================
  Files          35       35              
  Lines        2160     2207      +47     
==========================================
+ Hits         2148     2153       +5     
- Misses         12       54      +42     

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