Conda env out of date

Trying to create today, I got the following stack trace. Since other conda-forge stuff is not listed as missing, I'm guessing it's that those versions of conda and pip are no longer supported. Will make a PR with a working version but wondering if there may be reasons for these particular pins. May also be due to being on an M1.

```
conda env create --force --file environment.yml
Collecting package metadata (repodata.json): done
Solving environment: failed

ResolvePackageNotFound:
- plotly::python-kaleido=0.0.3
- conda-forge::pip=19.2.2
- conda-forge::python=3.7.1
```

Start with environment.yml and run `conda env create --force --file environment.yml` to reproduce the ResolvePackageNotFound errors for Python, pip, and python-kaleido. Check whether the pinned versions remain available and whether the M1 platform affects resolution; done means a fresh environment can be created successfully with the documented command.

Written by the indexing model from the issue text.