fix string formatting in error message

[jameslamb]

Thanks for this awesome project!

I noticed tonight that an error message is printing with the literal string f{lib_path} in it, like this:

delocate.libsana.DelocationError: f{lib_path} already exists in wheel but need to copy /opt/homebrew/Cellar/libomp/17.0.6/lib/libomp.dylib

I strongly suspect that was supposed to be an f-string, where {lib_path} is replaced in the error message with a path to a library.

This proposes that fix.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.93%. Comparing base (7f46f89) to head (e4c8b64).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #216   +/-   ##
=======================================
  Coverage   96.93%   96.93%           
=======================================
  Files          16       16           
  Lines        1307     1307           
=======================================
  Hits         1267     1267           
  Misses         40       40           

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[HexDecimal]

I apologize for getting around to this PR so late. I've rebased the PR and updated the changelog and the relevant tests. Tests for DelocationError were missing a match= argument.

[jameslamb]

No problem, and thanks very much!