Fix on step name for pylint action

On analyzing the code with `pylint`, the name of the step is `Test with pytest`, which is certainly not what it does.

ci/pylint.yml

@@ -17,6 +17,6 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install pylint
-    - name: Test with pytest
+    - name: Analysing the code with pylint
       run: |
         pylint `ls -R|grep .py$|xargs`