chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/pylint.yml

@@ -10,7 +10,7 @@ jobs:
     steps:
     - name: Install git
       run: apt update && apt install git python3 python3-pip -y
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Install dependencies
       run: |
         pip install -r requirements.txt