Add `excluded-dependencies` support

[zanieb]

We support this now by setting an impossible marker, e.g., override-dependencies = ["package; sys_platform = "never"] (https://docs.astral.sh/uv/reference/settings/#override-dependencies). We should add a dedicated option, e.g., excluded-dependencies = ["package"]. Unlike --no-install-package, this omits the whole dependency tree. We should add a dedicated option, as this is fairly bespoke.

Related:

• #12523
• #4422

[MrPandir]

This is literally what I requested in issue #7214, so I'll just mention it so it can be referenced.

[zanieb]

This should be fairly easy to add, if someone is interested.

[CodeMan62]

let me investigate and propose a fix EDIT:- Working

[CodeMan62]

@zanieb i have a small question can you tell me is this PR #10207 is related to this can I take reference of that and implement it or what I need just small clarification and then I will be good to go EDIT:- sorry I found what to do