ci: bump actions/checkout from 5 to 6

Author: lwb1978

.github/workflows/Auto cache software release jsons.yml

@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Initialization environment
         run: |