fix(install): use absolute path for symlinks

[kelly-sovacool]

Changes

Issues

PR Checklist

(Strikethrough any points that are not applicable.)

• This comment contains a description of changes with justifications, with any relevant issues linked.
• Write unit tests for any new features, bug fixes, or other code changes.
• Update docs if there are any API changes.
• Update CHANGELOG.md with a short description of any user-facing changes and reference the PR number. Guidelines: https://keepachangelog.com/en/1.1.0/

[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 72.51%. Comparing base (7790b20) to head (d417640).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/ccbr_tools/software.py	85.71%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #55      +/-   ##
==========================================
+ Coverage   71.53%   72.51%   +0.98%     
==========================================
  Files          21       21              
  Lines        1549     1557       +8     
==========================================
+ Hits         1108     1129      +21     
+ Misses        441      428      -13     

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