Deprecate ProgressBar and rename it to TQDMProgressBar

[kaushikb11]

What does this PR do?

Fixes #9302

Deprecate ProgressBar and rename it to TQDMProgressBar.

Follow up PR would be updating the tests and docs.

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

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[github-actions]

Build Error! No Linked Issue found. Please link an issue or mention it in the body using #<issue_id>

[rohitgr7]

I think there are still some references for ProgressBar inside test, docs and codebase.

[github-actions]

Build Error! No Linked Issue found. Please link an issue or mention it in the body using #<issue_id>

[kaushikb11]

I think there are still some references for ProgressBar inside test, docs and codebase.

Yes, I agree. The tests and docs would be updated in a separate PR.

[carmocca]

Why not here? The PR is not long as it is

[kaushikb11]

Why not here? The PR is not long as it is

Also, it would have lead to obvious merge conflicts in Sean's PR #9647. But I think I would go ahead with it.

[rohitgr7]

should this be updated too?
https://github.com/PyTorchLightning/pytorch-lightning/blob/2d4d60934d1bb7ffcda5995ae7706c508e2ae64c/pytorch_lightning/trainer/trainer.py#L293-L308

[kaushikb11]

@awaelchli @Borda Would need any of your approval for this.

[tchaton]

LGMT !

[codecov]

Codecov Report

Merging #10134 (f02c66e) into master (49dd787) will increase coverage by 4%.
The diff coverage is 100%.

@@           Coverage Diff            @@
##           master   #10134    +/-   ##
========================================
+ Coverage      89%      92%    +4%     
========================================
  Files         181      182     +1     
  Lines       16408    16415     +7     
========================================
+ Hits        14543    15182   +639     
+ Misses       1865     1233   -632