BF: Don't use deprecated DataFrame.append function

[TEParsons]

No description provided.

[codecov]

Codecov Report

Merging #5507 (4e520ab) into dev (0b19ace) will increase coverage by 0.14%.
The diff coverage is 41.37%.

@@            Coverage Diff             @@
##              dev    #5507      +/-   ##
==========================================
+ Coverage   47.30%   47.44%   +0.14%     
==========================================
  Files          64       64              
  Lines        9416     9436      +20     
  Branches     1223     1225       +2     
==========================================
+ Hits         4454     4477      +23     
+ Misses       4716     4709       -7     
- Partials      246      250       +4     

Impacted Files	Coverage Δ
psychopy/app/plugin_manager/plugins.py	17.53% <0.00%> (+0.15%)	⬆️
...py/experiment/routines/pavlovia_survey/__init__.py	94.11% <ø> (ø)
psychopy/session.py	53.37% <34.78%> (-4.11%)	⬇️
psychopy/app/plugin_manager/packages.py	14.64% <50.00%> (+0.25%)	⬆️
psychopy/experiment/routines/_base.py	83.25% <100.00%> (+0.08%)	⬆️
psychopy/visual/panorama.py	82.19% <100.00%> (ø)

... and 1 file with indirect coverage changes

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