Fix a bug in the UVBeam yaml constructor

[bhazelton]

Description

This fixes a bug discovered by @wps2n where the freq_range was ignored by the UVBeam yaml constructor because the yaml mapping wasn't fully parsed. It turns out that the deep=True parameter must be passed for full parsing, something I discovered earlier for the AnalyticBeam constructor but failed to propagate the fix to the UVBeam constructor. I don't really understand why the default is not to do deep mapping...

Motivation and Context

Types of changes

• 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 change)
• Documentation change (documentation changes only)
• Version change
• Build or continuous integration change
• Other

Checklist:

• I have read the contribution guide.
• My code follows the code style of this project.

Bug fix checklist:

• My fix includes a new test that breaks as a result of the bug (if possible).
• I have updated the CHANGELOG.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.93%. Comparing base (1f3c6b7) to head (0bc6f7e).
⚠️ Report is 111 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1594   +/-   ##
=======================================
  Coverage   99.93%   99.93%           
=======================================
  Files          63       63           
  Lines       22298    22300    +2     
=======================================
+ Hits        22283    22285    +2     
  Misses         15       15           

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[steven-murray]

What a weird default!

[bhazelton]

@steven-murray I had to rebase this, can you please reapprove?