DeprecationWarning: pkg_resources is deprecated as an API

[mtelka]

The deprecated pkg_resources is still used by setuptools-rust in the build.py file.

  File "/usr/lib/python3.9/vendor-packages/setuptools_rust/__init__.py", line 1, in <module>
    from .build import build_rust
  File "/usr/lib/python3.9/vendor-packages/setuptools_rust/build.py", line 21, in <module>
    import pkg_resources
  File "/usr/lib/python3.9/vendor-packages/pkg_resources/__init__.py", line 118, in <module>
    warnings.warn(
DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html