Fix sanity check for RichProgressBar

[kaushikb11]

What does this PR do?

Fixes sanity check for RichProgressBar

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Fixes #1

cc @Borda @tchaton @SeanNaren @kaushikb11

[awaelchli]

I would drop the test

[codecov]

Codecov Report

Merging #10913 (eed9dec) into master (23807c2) will increase coverage by 0%.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master   #10913   +/-   ##
=======================================
  Coverage      92%      92%           
=======================================
  Files         177      177           
  Lines       16490    16491    +1     
=======================================
+ Hits        15149    15160   +11     
+ Misses       1341     1331   -10