Fix packaging

[zhouzaida]

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Motivation

• build wheel package when publish to pypi
• include requirements/*.txt when packaging

Modification

Please briefly describe what modification is made in this PR.

BC-breaking (Optional)

Does the modification introduce changes that break the back-compatibility of the downstream repos?
If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.

Use cases (Optional)

If this PR introduces a new feature, it is better to list some use cases here, and update the documentation.

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues.
2. The modification is covered by complete unit tests. If not, please add more unit test 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 has been modified accordingly, like docstring or example tutorials.

[codecov]

Codecov Report

Merging #145 (8df40f6) into main (b449e97) will not change coverage.
The diff coverage is n/a.

❗ Current head 8df40f6 differs from pull request most recent head c0260ad. Consider uploading reports for the commit c0260ad to get more accurate results

@@           Coverage Diff           @@
##             main     #145   +/-   ##
=======================================
  Coverage   54.44%   54.44%           
=======================================
  Files          23       23           
  Lines        1552     1552           
  Branches      331      331           
=======================================
  Hits          845      845           
  Misses        582      582           
  Partials      125      125           

Flag	Coverage Δ
unittests	54.44% <ø> (ø)

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