Suppress NaN warnings with context manager.

[delucchi-cmu]

I believe this chunk of code will cause any user-defined warnings.simplefilter or warnings.filterwarnings to be overridden, with the statement warnings.filterwarnings("default").

This instead uses a context manager, so that warnings are only ignored for those few lines, and behavior can return to normal afterward.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.14%. Comparing base (feedc15) to head (a9b5fd3).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #453   +/-   ##
=======================================
  Coverage   93.14%   93.14%           
=======================================
  Files          47       47           
  Lines        2014     2014           
=======================================
  Hits         1876     1876           
  Misses        138      138           

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[github-actions]

Before [feedc15] <v0.4.6>	After [8386d7d]	Ratio	Benchmark (Parameter)
19.0±0.2ms	19.3±0.2ms	1.01	benchmarks.MetadataSuite.time_load_partition_info_order6
39.6±0.7ms	40.0±0.5ms	1.01	benchmarks.Suite.time_pixel_tree_creation
73.5±0.2ms	73.4±0.3ms	1	benchmarks.MetadataSuite.time_load_partition_info_order7
355±3ms	355±1ms	1	benchmarks.Suite.time_outer_pixel_alignment
1.04±0.01ms	1.04±0.03ms	1	benchmarks.time_test_cone_filter_multiple_order
73.7±0.2ms	73.0±0.2ms	0.99	benchmarks.MetadataSuite.time_load_partition_join_info
106±0.3ms	105±0.6ms	0.99	benchmarks.time_test_alignment_even_sky
13.3±0.4ms	13.0±0.4ms	0.98	benchmarks.Suite.time_inner_pixel_alignment

Click here to view all benchmarks.