Update conda and mamba

[isuruf]

Checklist

• [ ] Used a personal fork of the feedstock to propose changes
• [ ] Bumped the build number (if the version is unchanged)
• [ ] Reset the build number to 0 (if the version changed)
• [ ] Re-rendered with the latest conda-smithy (Use the phrase code>@<space/conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• [ ] Ensured the license file is being packaged.

[h-vetinari]

I think this PR ended up breaking something pretty early in recipe generation.

OpenCV started failing mid-PR with:

Attempting to finalize metadata for libopencv
INFO:conda_build.metadata:Attempting to finalize metadata for libopencv
conda-forge/osx-64                                          Using cache
conda-forge/noarch                                          Using cache
Reloading output folder: /Users/runner/miniforge3/conda-bld
Reloading output folder: /Users/runner/miniforge3/conda-bld
Traceback (most recent call last):
  [...]
  File "/Users/runner/miniforge3/lib/python3.10/site-packages/conda_index/index/__init__.py", line 347, in _get_resolve_object
    sd._process_raw_repodata(repodata_copy)  # type: ignore
TypeError: SubdirData._process_raw_repodata() missing 1 required positional argument: 'state'