[Fix] Devide-and-integerize operation for torch.Tensor

[wusize]

Motivation

Resolve pytorch warning in voxelpose_head.py for divison operation.

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.

[CLAassistant]

All committers have signed the CLA.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Files	Coverage Δ
mmpose/models/heads/voxelpose_head.py	100.00% <100.00%> (ø)

📢 Thoughts on this report? Let us know!

[ly015]

Could you please also check if this issue exists in other parts of mmpose?

[wusize]

Could you please also check if this issue exists in other parts of mmpose?

Ok.

[ly015]

@wusize CI failed. Please check the reason.