fix: add host dependency on 'setuptools', ignore renovate Python updates

[jameslamb]

The renovate bot just opened #112, trying to upgrade the CI image used in this repo for wheel builds / tests from python:3.9 to python:3.13.

We don't want those types of updates... it's an intentional choice that rapids-dependency-file-generator wheels are built and tested on the oldest Python version this tool supports.

This PR attempts to tell renovate not to make such recommendations in the future. I saw "attempts" because I have no idea how to test this.

references suggesting this ignoreDeps field is the right way to do this:

• https://docs.renovatebot.com/configuration-options/#ignoredeps
• Update condaforge/mambaforge Docker tag to v23.11.0 docker#643 (comment)

[jameslamb]

conda builds here failed like this:

ModuleNotFoundError: No module named 'setuptools'

(build link)

Makes sense... this project uses setuptools as its build backend but doesn't declare a host dependency on it in its conda recipe. We must have just been getting that transitively before.

dependency-file-generator/pyproject.toml

Lines 1 to 3 in d38a5d3

	[build-system]
	requires = ["setuptools"]
	build-backend = "setuptools.build_meta"

I just pushed a commit here adding a host dependency on setuptools, to fix that. I also changed the title to fix: so this will result in publishing a new patch version (1.15.1)... I think that's warranted, given that this now potentially changes the build environment and therefore the conda package contents.

[GPUtester]

🎉 This PR is included in version 1.15.1 🎉

The release is available on:

• GitHub release
• PyPI release
• Conda release - rapidsai
• Conda release - rapidsai-nightly

Your semantic-release bot 📦🚀