Update ni.py

[AdvancedImagingUTSW]

This error resurfaced again when setting up someone else today. Once this PR is approved, I will create another release.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 53.91%. Comparing base (13a317b) to head (0a0c149).
Report is 4 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/navigate/model/devices/daq/ni.py	0.00%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #987   +/-   ##
========================================
  Coverage    53.91%   53.91%           
========================================
  Files          178      178           
  Lines        19521    19526    +5     
========================================
+ Hits         10524    10527    +3     
- Misses        8997     8999    +2     

Flag	Coverage Δ
unittests	53.91% <0.00%> (+<0.01%)	⬆️

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