ci(deps): bump actions/checkout from 5 to 6 (#29)

Author: dependabot[bot]

.github/workflows/autoupdate.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           token: ${{ secrets.COATL_BOT_GH_TOKEN }}
 

.github/workflows/docker-build-push-multi-registry.yml

@@ -84,7 +84,7 @@ jobs:
             platform: linux/arm64
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Prepare
         id: prepare