unpin docutils and bump build number to 1 for v1.2.0

[valeriupredoi]

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 @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

Following on from #28 I am proposing to unpin docutils so that sphinx_rtd_theme build=1 of version 1.2.0 allows support for the latest sphinx and python=3.11. Note that I am not aware of the reason for the pin, so I might be completely wrong unpinning it, but from a purely dependency analysis point of view, this would be useful. Cheers 🍺

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[valeriupredoi]

@conda-forge-admin, please rerender

[valeriupredoi]

@chohner feel free to close this or keep open until readthedocs/sphinx_rtd_theme#1323 gets sorted out? Obviously I opened it without checking if >=0.19 would be suitable 😁