`setuptools 66` breaks conda-build

### Checklist

- [X] I added a descriptive title
- [X] I searched open reports and couldn't find a duplicate

### What happened?

Setuptools has dropped `pkg_resources.parse_version` legacy behaviour, so it doesn't use `LegacyVersion` under the hood anymore. This results in some `InvalidVersion` errors in the test suite: https://github.com/conda/conda-build/pull/4732

See:
- https://github.com/pypa/setuptools/issues/2497
- https://github.com/pypa/packaging/pull/407

### Conda Info

```shell
See CI https://github.com/conda/conda-build/pull/4732
```


### Conda Config

```shell
See CI https://github.com/conda/conda-build/pull/4732
```


### Conda list

```shell
See CI https://github.com/conda/conda-build/pull/4732
```


### Additional Context

This affects `conda-smithy rerender` too: https://github.com/conda-forge/conda-forge-pinning-feedstock/issues/3973

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`setuptools 66` breaks conda-build #4733

jaimergp
openedon Jan 19, 2023

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setuptools 66 breaks conda-build #4733

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jaimergpopenedon Jan 19, 2023