For now, there is no feature for restoring a deleted workspace. However, you can recover the collections that were in this team workspace and share them back to a new workspace.
1 - Create a new team workspace here and name it either with the same name or a new one.
2 - In the dashboard, go to all your collections and search for the ones that belonged to the deleted workspace.
3 - Click
Share next to the collection(s) you want to recover.
4 - Select the workspace created in
step 1 and click