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

.github/workflows/main.yml

@@ -8,7 +8,7 @@ jobs:
     name: Docker build, tag, and push
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Docker build, tag, and push
       uses: pangzineng/Github-Action-One-Click-Docker@master
       env:

.github/workflows/tests.yml

@@ -4,7 +4,7 @@ jobs:
   tests:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
         with:
           version: 9