fix: pad audio arrays to same shape if sample rates differ

[chrisammon3000]

Description

Please refer to #1875 for a detailed description of the issue this fixes. When ffmpeg creates subclips of a video sometimes the audio sample rates are inconsistent causing an error due to different size arrays. To fix this the arrays are padded to ensure they are all the same shape before they are parsed as AudioNdArray.

[JoanFM]

It would be nice to add a test case to show that the problem is fixed.

[JoanFM]

Hey @chrisammon3000 ,

Thanks a lot for the contribution.

However we would ask you to submit a test case to make sure the error case is covered and to make sure that the commits are signed-off to ensure that we can merge the contribution.

Please take a look at our contributing guidelines (https://github.com/docarray/docarray/blob/main/CONTRIBUTING.md)

[codecov]

Codecov Report

Attention: Patch coverage is 36.36364% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 84.63%. Comparing base (febbdc4) to head (a574002).

Files	Patch %	Lines
docarray/typing/bytes/video_bytes.py	36.36%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1880      +/-   ##
==========================================
- Coverage   84.69%   84.63%   -0.06%     
==========================================
  Files         136      136              
  Lines        9263     9274      +11     
==========================================
+ Hits         7845     7849       +4     
- Misses       1418     1425       +7     

Flag	Coverage Δ
docarray	84.63% <36.36%> (-0.06%)	⬇️

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