Fix install and test

[TedBrookings]

• Fix failing unit test
• Bump pysam version to fix install problems

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (28ab1e3) 92.92% compared to head (b6de0ed) 92.91%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #71      +/-   ##
==========================================
- Coverage   92.92%   92.91%   -0.01%     
==========================================
  Files          30       30              
  Lines        3052     3079      +27     
  Branches      568      572       +4     
==========================================
+ Hits         2836     2861      +25     
- Misses        144      145       +1     
- Partials       72       73       +1     

Files	Coverage Δ
fgpyo/io/__init__.py	91.30% <100.00%> (+0.39%)	⬆️
fgpyo/util/tests/test_metric.py	100.00% <100.00%> (ø)
fgpyo/util/metric.py	91.00% <77.77%> (-1.31%)	⬇️

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[nh13]

Ignore code cov for this one