[Fix] Update NME default indices

[Tau-J]

Motivation

Modification

BC-breaking (Optional)

Use cases (Optional)

Checklist

Before PR:

• I have read and followed the workflow indicated in the CONTRIBUTING.md to create this PR.
• Pre-commit or linting tools indicated in CONTRIBUTING.md are used to fix the potential lint issues.
• Bug fixes are covered by unit tests, the case that causes the bug should be added in the unit tests.
• New functionalities are covered by complete unit tests. If not, please add more unit tests to ensure correctness.
• The documentation has been modified accordingly, including docstring or example tutorials.

After PR:

• CLA has been signed and all committers have signed the CLA in this PR.

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.01 🎉

Comparison is base (c40a2d4) 80.74% compared to head (2c8c7b0) 80.76%.

❗ Current head 2c8c7b0 differs from pull request most recent head 88c819c. Consider uploading reports for the commit 88c819c to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           dev-1.x    #2508      +/-   ##
===========================================
+ Coverage    80.74%   80.76%   +0.01%     
===========================================
  Files          251      251              
  Lines        15218    15218              
  Branches      2636     2636              
===========================================
+ Hits         12288    12291       +3     
+ Misses        2263     2260       -3     
  Partials       667      667              

Flag	Coverage Δ
unittests	80.76% <ø> (+0.01%)	⬆️

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

Impacted Files	Coverage Δ
mmpose/evaluation/metrics/keypoint_2d_metrics.py	97.75% <ø> (ø)

... and 1 file with indirect coverage changes

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