chore(deps): bump actions/checkout from 4 to 6

.github/workflows/archive_lint_reports.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout source code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Get current timestamp
         id: timestamp

.github/workflows/docker-multi-arch.yml

@@ -52,7 +52,7 @@ jobs:
             runs-on: ubuntu-24.04-arm
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           persist-credentials: false
 
@@ -92,7 +92,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
           fetch-depth: 0

.github/workflows/kubernetes-deploy-to-cluster.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Import Secrets
       uses: hashicorp/vault-action@v3