Bump version to v0.9.0

[caizhongang]

No description provided.

[codecov]

Codecov Report

Merging #214 (f9246fc) into main (f39f88c) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #214      +/-   ##
==========================================
+ Coverage   85.06%   85.10%   +0.04%     
==========================================
  Files         193      193              
  Lines       17278    17278              
==========================================
+ Hits        14697    14705       +8     
+ Misses       2581     2573       -8     

Flag	Coverage Δ
unittests	85.10% <100.00%> (+0.04%)	⬆️

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Impacted Files	Coverage Δ
mmhuman3d/version.py	69.23% <100.00%> (ø)
...man3d/data/datasets/pipelines/hybrik_transforms.py	92.11% <0.00%> (+1.80%)	⬆️

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[yl-1993]

Looks great! Shall we touch a __init__.py under mmhuman3d/data to make it found as a package?