Remove vcpkg requirement and use conda for range-v3

[horizon-blue]

Motivation

Now that range-v3 is available in conda-forge (https://github.com/conda-forge/staged-recipes/pull/22443), we can simplify the installation and get rid of the need to install vcpkg just to get the range-v3 dependency.

Changes proposed

• Remove vcpkg installation guide from README and CI
• Install range-v3 from conda-forge together when we install Boost and Eigen

Test Plan

I have tested and verify that the changes run on my MacOS machine (with Python 3.10). If the CI also pass then we should be good.

Types of changes

• [x] Docs change / refactoring / dependency upgrade
• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.
• [x] The title of my pull request is a short description of the requested changes.

[ndmlny-qs]

@horizon-blue if there are no other items you want to add to the PR, then let me know if you can do a squash/merge. If not, I think I might be able to fix this for future PRs.

[horizon-blue]

Looks like I am able to squash and merge just fine. Thanks for the review, @ndmlny-qs!