[Enhancement] Support flexible runner

[cir7]

Motivation

[Enhancement] Support flexible runner

[codecov]

Codecov Report

Patch coverage: 30.23% and project coverage change: -0.14% ⚠️

Comparison is base (c548788) 76.18% compared to head (eab0df9) 76.04%.
Report is 11 commits behind head on dev-1.x.

❗ Current head eab0df9 differs from pull request most recent head afb07cd. Consider uploading reports for the commit afb07cd to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           dev-1.x    #2646      +/-   ##
===========================================
- Coverage    76.18%   76.04%   -0.14%     
===========================================
  Files          170      170              
  Lines        13792    13806      +14     
  Branches      2361     2365       +4     
===========================================
- Hits         10507    10499       -8     
- Misses        2718     2739      +21     
- Partials       567      568       +1     

Flag	Coverage Δ
unittests	76.04% <30.23%> (-0.14%)	⬇️

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Files Changed	Coverage Δ
mmaction/apis/__init__.py	100.00% <ø> (ø)
mmaction/apis/inference.py	64.51% <14.70%> (-18.28%)	⬇️
mmaction/models/losses/hvu_loss.py	86.36% <50.00%> (+0.20%)	⬆️
mmaction/datasets/transforms/formatting.py	92.12% <100.00%> (-0.52%)	⬇️
mmaction/datasets/transforms/loading.py	81.73% <100.00%> (+0.40%)	⬆️
mmaction/models/heads/tpn_head.py	90.69% <100.00%> (+4.65%)	⬆️

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