Bump actions/checkout from v4 to v6 in /.github/workflows (#25)

Author: UltralyticsAssistant

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Python
         uses: actions/setup-python@v6

.github/workflows/push.yml

@@ -18,7 +18,7 @@ jobs:
         model: [yolo11n, yolov8s-worldv2, yoloe11s]
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Setup Python
         uses: actions/setup-python@v6
         with: