Merge dev-1.x to main

[cir7]

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Motivation

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Modification

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BC-breaking (Optional)

Does the modification introduces changes that break the back-compatibility of this repo?
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Checklist

1. Pre-commit or other linting tools should be used to fix the potential lint issues.
2. The modification should be covered by complete unit tests. If not, please add more unit tests to ensure the correctness.
3. If the modification has potential influence on downstream projects, this PR should be tested with downstream projects, like MMDet or MMCls.
4. The documentation should be modified accordingly, like docstring or example tutorials.

[codecov]

Codecov Report

Patch coverage: 61.77% and project coverage change: -0.72 ⚠️

Comparison is base (07259a2) 76.97% compared to head (100bdbe) 76.25%.

❗ Current head 100bdbe differs from pull request most recent head 56c18a2. Consider uploading reports for the commit 56c18a2 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2551      +/-   ##
==========================================
- Coverage   76.97%   76.25%   -0.72%     
==========================================
  Files         159      170      +11     
  Lines       12546    13904    +1358     
  Branches     2099     2375     +276     
==========================================
+ Hits         9657    10603     +946     
- Misses       2386     2732     +346     
- Partials      503      569      +66     

Flag	Coverage Δ
unittests	76.25% <61.77%> (-0.72%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
mmaction/datasets/rawframe_dataset.py	93.33% <0.00%> (-4.40%)	⬇️
mmaction/datasets/transforms/wrappers.py	56.34% <0.00%> (-0.91%)	⬇️
mmaction/datasets/video_dataset.py	89.65% <0.00%> (-6.65%)	⬇️
mmaction/models/localizers/bsn.py	90.90% <ø> (ø)
mmaction/models/recognizers/recognizer3d.py	67.85% <ø> (ø)
mmaction/testing/__init__.py	100.00% <ø> (ø)
mmaction/utils/typing_utils.py	95.00% <ø> (ø)
mmaction/visualization/action_visualizer.py	70.19% <ø> (ø)
...ptimizers/layer_decay_optim_wrapper_constructor.py	17.64% <8.33%> (-2.00%)	⬇️
mmaction/utils/collect_env.py	22.72% <8.33%> (-17.28%)	⬇️
... and 52 more

... and 2 files with indirect coverage changes

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