new local scheme of dirty-tag for developer installation

[ericbuckley]

Description

When we install RecordLinker into an environment, a version number is automatically calculated from git data using setuptools scm. If the HEAD is a version tag, then the version is automatically calculated to be that. In development environments, though, we take the last version and add a "post.0" to it, showing it's a new release post the last named one.

Additionally, we were previously calculating a timestamp to add to that "post.0" value based on when HEAD was committed. This worked most of the time, however if the developer has a dirty index, the wheel wouldn't build correctly. We don't need that, and it's fine if a developer tries to install / reinstall RecordLinker in an environment with a dirty index. So to get around that, we'll stop adding the timestamp to the end of "post.0" and instead just call it "post.0+dirty" (if the index is indeed dirty).

<--------------------- REMOVE THE LINES BELOW BEFORE MERGING --------------------->

Checklist

Please review and complete the following checklist before submitting your pull request:

• I have ensured that the pull request is of a manageable size, allowing it to be reviewed within a single session.
• I have reviewed my changes to ensure they are clear, concise, and well-documented.
• I have updated the documentation, if applicable.
• I have added or updated test cases to cover my changes, if applicable.
• I have minimized the number of reviewers to include only those essential for the review.

Checklist for Reviewers

Please review and complete the following checklist during the review process:

• The code follows best practices and conventions.
• The changes implement the desired functionality or fix the reported issue.
• The tests cover the new changes and pass successfully.
• Any potential edge cases or error scenarios have been considered.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.51%. Comparing base (d76f725) to head (730a822).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #191   +/-   ##
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  Coverage   97.51%   97.51%           
=======================================
  Files          31       31           
  Lines        1486     1486           
=======================================
  Hits         1449     1449           
  Misses         37       37           

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