fix(deps): require JuliaCall 0.9.36 and remove workaround

[MilesCranmerBot]

Why

JuliaCall 0.9.36 includes the interpreter propagation correction and PythonCall Windows initialization fix from JuliaPy/PythonCall.jl#814 and JuliaPy/PythonCall.jl#820.

Scope

• Require juliacall>=0.9.36,<0.9.37.
• Remove the JuliaCall 0.9.35 executable-environment workaround and its unused metadata import.
• Preserve all tests, assertions, and platform workflows.

Verification

The unchanged test_juliacall_0935_distributed_worker_uses_current_python passed both import orders on macOS with Python 3.14, Julia 1.13.0, and released PythonCall 0.9.36. Run with:

uv run --isolated --with pytest --with nbval python -m unittest -v pysr.test.test_startup.TestStartup.test_juliacall_0935_distributed_worker_uses_current_python

Result: Ran 1 test in 70.606s, OK. Pre-commit checks passed. Windows and Linux validation will run through the existing PR workflows.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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