use built in clip

[raybellwaves]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Closes #(issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Performance (if you touched existing code run asv to detect performance changes)
• refactoring

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. This could point to a cell in the updated notebooks. Or a snippet of code with accompanying figures here.

Checklist (while developing)

• I have added docstrings to all new functions.
• I have commented my code, particularly in hard-to-understand areas
• Tests added for pytest, if necessary.

Pre-Merge Checklist (final steps)

• I have rebased onto main or develop (wherever I am merging) and dealt with any conflicts.
• I have squashed commits to a reasonable amount, and force-pushed the squashed commits.

References

Please add any references to manuscripts, textbooks, etc.

[codecov]

Codecov Report

Merging #310 (54ff8f2) into main (e2e3e7f) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #310   +/-   ##
=======================================
  Coverage   94.50%   94.50%           
=======================================
  Files          23       23           
  Lines        2566     2566           
=======================================
  Hits         2425     2425           
  Misses        141      141           

Impacted Files	Coverage Δ
xskillscore/core/probabilistic.py	90.94% <100.00%> (ø)
xskillscore/tests/test_probabilistic.py	96.64% <100.00%> (ø)

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[raybellwaves]

@aaronspring if ok i'm going to merge. planning on a release when #307 goes in