Add missing CI workflow badge to readme

The badges provide a prominent indicator of the status of each of the important GitHub Actions workflows used in the
project's continuous integration system.

Author: per1234

README.md

@@ -4,6 +4,7 @@
 [![Codecov](https://codecov.io/gh/arduino/libraries-repository-engine/branch/main/graph/badge.svg)](https://codecov.io/gh/arduino/libraries-repository-engine)
 [![Integration Test status](https://github.com/arduino/libraries-repository-engine/actions/workflows/test-go-integration-task.yml/badge.svg)](https://github.com/arduino/libraries-repository-engine/actions/workflows/test-go-integration-task.yml)
 [![Check Go status](https://github.com/arduino/libraries-repository-engine/actions/workflows/check-go-task.yml/badge.svg)](https://github.com/arduino/libraries-repository-engine/actions/workflows/check-go-task.yml)
+[![Check Python status](https://github.com/arduino/libraries-repository-engine/actions/workflows/check-python-task.yml/badge.svg)](https://github.com/arduino/libraries-repository-engine/actions/workflows/check-python-task.yml)
 [![Check Prettier Formatting status](https://github.com/arduino/libraries-repository-engine/actions/workflows/check-prettier-formatting-task.yml/badge.svg)](https://github.com/arduino/libraries-repository-engine/actions/workflows/check-prettier-formatting-task.yml)
 [![Check Taskfiles status](https://github.com/arduino/libraries-repository-engine/actions/workflows/check-taskfiles.yml/badge.svg)](https://github.com/arduino/libraries-repository-engine/actions/workflows/check-taskfiles.yml)
 [![Spell Check status](https://github.com/arduino/libraries-repository-engine/actions/workflows/spell-check-task.yml/badge.svg)](https://github.com/arduino/libraries-repository-engine/actions/workflows/spell-check-task.yml)