Move to uv

[aborgna-q]

We use a python package manager locally just to run Rust tests that talk with the python interpreter via pyo3 (to query data from pytket).

I have a branch attempting to replace poetry with uv here, but unfortunately it seems that when uv uses local python interpreters rustc cannot find libpython:

uv run -- cargo test
   Compiling tket-json-rs v0.6.2 (/Users/aborgna/src/tket-json-rs)
error: linking with `cc` failed: exit status: 1
  |
  = note: (...) "cc" "-arch" "arm64" (...) "-lpython3.13" "-liconv" "-lSystem" "-lc" "-lm" "-L" "/install/lib" (...)
  = note: ld: warning: search path '/install/lib' not found
          ld: library 'python3.13' not found
          clang: error: linker command failed with exit code 1 (use -v to see invocation)

I think this is the same issue reported here astral-sh/uv#6812, so we'll have to wait for a fix before updating.