hashFiles('src/ansys/fluent/core/codegen/**') output is different before and after running first codegen

https://github.com/ansys/pyfluent/actions/runs/15617780212/job/43995153954

Cache key before running first codegen - API-Code-v3-0.33.dev0-v23.1.0-24e59e9faa402431d31660ba3138249e6af5c06ecb2f54ecabfa89c62bff53c9

Cache key after running first codegen - API-Code-v3-0.33.dev0-v23.2.0-c1e68cda3bc7483d9b193b2757833db661d0d01ded7befab0860037385d13b86

This creates duplicate cache for 25.2 (during build and doc steps).

Issue is probably due to \_\_pycache__ folders?

Start with the linked GitHub Actions run and compare hashFiles('src/ansys/fluent/core/codegen/**') before and after the first codegen step. Inspect the generated path, including the suspected __pycache__ folders, and use the merged pull request as context. Done means the cache key remains consistent and the duplicate 25.2 cache is eliminated.

Written by the indexing model from the issue text.