Update pylint.yml

Author: Jmateusribeiro

.github/workflows/pylint.yml

@@ -18,7 +18,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install pylint
-        pip install -r requirements.txt
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; else echo "requirements.txt not found"; fi
     - name: Analyzing the code with pylint
       run: |
         pylint $(git ls-files '*.py')