TeaController has no injectTeaRepository method anymore

[brotkrueml]

On the page:

https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/ExtensionArchitecture/Tutorials/Tea/Controller.html

the "tea" extension is used. However, the injectTeaRepository method is not available anymore with the 3.1.0 release, therefore the generating of the API fails:

Cannot extract constant nor property nor method "injectTeaRepository" from class "TTN\Tea\Controller\TeaController"

However, constructor injection is used instead.