G Karthik Koundinya

Add Hopcroft-Karp algorithm and doctests for manual_accuracy function

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**Contributes to #9943** ## Description This PR includes two contributions: 1. **Hopcroft-Karp Algorithm Implementation**: Adds the Hopcroft-Karp algorithm for finding maximum matching in bipartite graphs, a fundamental graph algorithm with...

Add PIPX_DISABLE_SHARED_LIBS_AUTO_UPGRADE environment variable to disable automatic shared library upgrades

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## Summary Fixes #1650 This PR implements the feature requested in #1650 by adding a new environment variable `PIPX_DISABLE_SHARED_LIBS_AUTO_UPGRADE` that allows users to disable automatic upgrades of shared libraries (pip,...