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

.github/workflows/matrix.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Run yamllint
         uses: frenck/action-yamllint@v1.5.0
   ansible-lint:
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Run ansible-lint
         uses: ansible/ansible-lint@v25.11.0
@@ -37,6 +37,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Run pre-commit
         uses: pre-commit/action@v3.0.1