fix to the requirements file path with proper slash usage

with path and slash

.github/workflows/pylint.yml

@@ -17,7 +17,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r src\requirements.txt
+        pip install -r src/requirements.txt
         pip install pylint
     - name: Analysing the code with pylint
       run: |