Update the TQDM progress bar on_train_epoch_end

[carmocca]

What does this PR do?

Fixes #10653

Does your PR introduce any breaking changes? If yes, please list them.

None

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cc @Borda @awaelchli

[justusschock]

Same as @awaelchli I'm struggling to understand why this fixes it. Could you maybe add a comment on that?

[awaelchli]

@carmocca Perhaps the PR should leave the linked issue open until we have the same fix for rich?

[carmocca]

@carmocca Perhaps the PR should leave the linked issue open until we have the same fix for rich?

Sure, I don't know how to unlink it, but we can re-open it once this is merged

[codecov]

Codecov Report

Merging #11069 (e3917d5) into master (06c5903) will increase coverage by 0%.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master   #11069   +/-   ##
=======================================
  Coverage      92%      92%           
=======================================
  Files         177      177           
  Lines       16492    16498    +6     
=======================================
+ Hits        15151    15166   +15     
+ Misses       1341     1332    -9