Make OpenZl Python wrapper package version dynamic

[njmei]

Summary

This PR modifies the version field for the Python wrapper package of OpenZl by making it dynamic. The version values will now be obtained from the include/openzl/zl_version.h file.

Type of Change

Build/CI changes (update how version of pyproject.toml is set)

Test Plan

Validation:

• On local copy, modified ZL_LIBRARY_VERSION_PATCH from 0 -> 1
• Ran pip install
• Confirmed version now reflects values in zl_version.h

Output:

> pip install .
Processing /data/openzl/py
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Installing backend dependencies ... done
  Preparing metadata (pyproject.toml) ... done
Building wheels for collected packages: openzl
  Building wheel for openzl (pyproject.toml) ... done
  Created wheel for openzl: filename=openzl-0.1.1.dev0-cp312-abi3-linux_x86_64.whl size=5683742 sha256=3169b521b1aafffb437201597f1575e443ff7c7a6db83555ba08dc5dbbc7dfa4
  Stored in directory: /tmp/pip-ephem-wheel-cache-fg9ff8b8/wheels/a7/2d/36/abbf0c966eef96fc386ad984a19e8201825d1f42816b0e0a7d
Successfully built openzl
Installing collected packages: openzl
Successfully installed openzl-0.1.1.dev0

Test Configuration

Not really relevant

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[njmei]

Looks like I hadn't signed the CLA yet, I've done that now.

[meta-cla]

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