Issue#45: Replace Psalm with PHPStan

Signed-off-by: horea <horea@rospace.com>

Author: Howriq

README.md

@@ -15,6 +15,7 @@ It is more lightweight though, but supports controller plugins and event listene
 [![Build Static](https://github.com/dotkernel/dot-controller/actions/workflows/continuous-integration.yml/badge.svg?branch=4.0)](https://github.com/dotkernel/dot-controller/actions/workflows/continuous-integration.yml)
 [![codecov](https://codecov.io/gh/dotkernel/dot-controller/graph/badge.svg?token=VUBG5LM4CK)](https://codecov.io/gh/dotkernel/dot-controller)
 [![PHPStan](https://github.com/dotkernel/dot-controller/actions/workflows/static-analysis.yml/badge.svg?branch=4.0)](https://github.com/dotkernel/dot-controller/actions/workflows/static-analysis.yml)
+
 ## Installation
 
 Install `dot-controller` by executing the following Composer command: