Switch test infrastructure from TestItems.jl to ParallelTestRunner.jl

[ytdHuang]

Checklist

Thank you for contributing to HierarchicalEOM.jl! Please make sure you have finished the following tasks before opening the PR.

• Please read Contributing to Quantum Toolbox in Julia.
• Any code changes were done in a way that does not break public API.
• Appropriate tests were added and tested locally by running: make test.
• Any code changes should be julia formatted by running: make format.
• All documents (in docs/ folder) related to code changes were updated and able to build locally by running: make docs.

Request for a review after you have completed all the tasks. If you have not finished them all, you can also open a Draft Pull Request to let the others know this on-going work.

Description

As title

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.90%. Comparing base (77a0d41) to head (bd29d19).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #320      +/-   ##
==========================================
- Coverage   94.37%   92.90%   -1.47%     
==========================================
  Files          26       26              
  Lines        1635     1635              
==========================================
- Hits         1543     1519      -24     
- Misses         92      116      +24     

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