DOC: add redirects from Rolling to rolling.Rolling
- [x] closes #31762 
@jorisvandenbossche Can you please tell me whether it's correct or not? If it is then I will add other Rolling related redirects too. @jorisvandenbossche Can you please check out the doc failures? It says `Could not import extension contributors (exception: No module named 'gitdb.utils.compat')` The failures have gone. Can you take a look back, please? @jorisvandenbossche  Still some problems with the CI. Can you merge master and see if it finishes successfully now please?
```
git fetch upstream
git merge upstream/master
git push
``` Merged master. Ping on green. The doc build is passing, so merging this Thanks @rushabh-v 