Skip lsst-sphgeom on Windows

[hombit]

lsst-sphegom is not available on Windows, let's skip it's installation for lsdb[full]

[github-actions]

Before [7bc0215]	After [040c64e]	Ratio	Benchmark (Parameter)
948±7ms	967±9ms	1.02	benchmarks.time_create_midsize_catalog
80.6±0.7ms	81.9±0.8ms	1.02	benchmarks.time_kdtree_crossmatch
13.0±0.2ms	13.1±0.3ms	1.01	benchmarks.time_box_filter_on_partition
6.44±0.01s	6.44±0.04s	1	benchmarks.time_create_large_catalog
26.7±0.4ms	26.5±0.5ms	0.99	benchmarks.time_polygon_search

Click here to view all benchmarks.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.44%. Comparing base (7bc0215) to head (6d5c3cd).
⚠️ Report is 177 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #809   +/-   ##
=======================================
  Coverage   97.44%   97.44%           
=======================================
  Files          54       54           
  Lines        2463     2463           
=======================================
  Hits         2400     2400           
  Misses         63       63           

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