Automatically create docs PR on release

[merschformann]

Description

This PR means to automatically open a PR with necessary changes to the switcher.json in order to integrate newly released docs.

Prerequisites

In order to use this functionality the following needs to be configured on repository side:

• Requires "Allow GitHub Actions to create and approve pull requests" to be enabled in the repository settings.

Changes

• Adds docs/update_switcher.py which is used to include the new version and bumping the latest in switcher.json
• Opens a PR with above changes after a release and requests @Conengmo & @ocefpaf for reviews
  • I wasn't sure about the reviewers, happy to adapt the list 😊
• Introduces a dev version in switcher.json which points to the latest docs from the main branch

[merschformann]

Let me know if I can be of any assistance here. It doesn't seem to me that the test fail is caused by my changes:

ValueError: 'M' is no longer supported for offsets. Please use 'ME' instead.

It seems to be emerging from here in pandas.

[Conengmo]

This is great, thanks!

That test issue is unrelated indeed, it should be fixed in main branch now.

I made a small change to not add a reviewer to the PR, no need, one of us will get it.