Hard dependency to prevent conflicts

[MaartenGr]

Alright, this was more annoying than I'd expected.

It turns out that llvmlite gives major issues with uv's dependency manager (see #2311).

I initially thought that adding the following would work:

[tool.uv]
constraint-dependencies = ["llvm>0.43.0"]

Which it did during local tests. However, it seemed that this was not the case after pushing the package to pypi.org. I hoped it would be fixed with changing the order of the dependencies, which worked locally but again not after I had pushed the package to pypi.org.

So now I'm just going to resort to something that will definitely work, namely putting llvmlite>0.36.0 as a hard dependency. It already is when you install numba through umap-learn and hdbscan, but now we make it a bit more explicit.

I will delete the other releases that I hoped would fix the issues with uv, namely the v0.17.2 and v0.17.2.post1 releases.