Convert to using pyproject.toml as much as possible.

[bhazelton]

Description

Convert to using pyproject.toml as much as possible. This is both to follow current best practices and also to try to fix recent setuptools_scm issues.

Also fixed two things in the actions yaml that seem to have fixed the MacOS builds:

• fetching the full-depth repo (without this calls to git describe fail)
• calling git describe and git version right before the install step. This seems to fix a problem on Mac builds where setuptools_scm's call to git was timing out. I don't really understand why...

Motivation and Context

Checklists:

Build/CI Change Checklist:

• [x] I have read the contribution guide.
• [x] My code follows the code style of this project.
• [ ] If required or optional dependencies have changed (including version numbers), I have updated the readme to reflect this.
• [ ] If this is a new CI setup, I have added the associated badge to the readme

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (021b9bc) to head (c791155). Report is 33 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #248 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 5 5 Lines 2134 2131 -3 Branches 608 608 ========================================= - Hits 2134 2131 -3 ```

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[mkolopanis]

we may want to set SETUPTOOLS_SCM_DEBUG=1 when performing the install for a macos build to see if there is any interesting output