[OpenVINO Backend] Support for numpy.flip

[chuinzer]

This change resolves #29359. @rkazants please review this PR.
My bad for spamming PRs, had some problems with CLA.

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[rkazants]

not needed. use ov_opset

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 19 lines in your changes missing coverage. Please review.

Project coverage is 79.83%. Comparing base (37eacb0) to head (f8ab0e0).
Report is 9 commits behind head on master.

Files with missing lines	Patch %	Lines
keras/src/backend/openvino/numpy.py	0.00%	19 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #21230      +/-   ##
==========================================
- Coverage   82.61%   79.83%   -2.79%     
==========================================
  Files         564      564              
  Lines       54476    54520      +44     
  Branches     8470     8473       +3     
==========================================
- Hits        45005    43524    -1481     
- Misses       7395     8972    +1577     
+ Partials     2076     2024      -52     

Flag	Coverage Δ
keras	79.64% <0.00%> (-2.78%)	⬇️
keras-jax	63.66% <0.00%> (-0.06%)	⬇️
keras-numpy	58.79% <0.00%> (-0.05%)	⬇️
keras-openvino	?
keras-tensorflow	64.07% <0.00%> (-0.05%)	⬇️
keras-torch	63.73% <0.00%> (-0.06%)	⬇️

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[chuinzer]

Looking into the error. Will take some time.