Update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/autofix.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5.0.1
+        uses: actions/checkout@v6.0.2
         with:
           fetch-depth: 0
       - name: Setup Tools

.github/workflows/orama_sync.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
         with:
           version: 10

.github/workflows/static_checks.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install tools & dependencies
         uses: ./.github/actions/install
@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install tools & dependencies
         uses: ./.github/actions/install