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

Author: renovate[bot]

.github/workflows/check-node-docs-sync.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Node.js
         uses: actions/setup-node@v4

.github/workflows/docs-mcp.yml

@@ -21,7 +21,7 @@ jobs:
   build-and-push:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Log in to GitHub Container Registry
         uses: docker/login-action@v3

.github/workflows/e2e.yml

@@ -17,7 +17,7 @@ jobs:
     timeout-minutes: 30
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Node
         uses: actions/setup-node@v4

.github/workflows/lint-code-examples.yml

@@ -15,7 +15,7 @@ jobs:
   lint-code-examples:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: '3.12'

.github/workflows/sync-docs-from-node.yml

@@ -51,7 +51,7 @@ jobs:
       version: ${{ steps.final_version.outputs.version }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Extract version parameter
         id: extract
@@ -96,7 +96,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout documentation repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
 
@@ -107,7 +107,7 @@ jobs:
           sudo chmod +x /usr/local/bin/yq
 
       - name: Clone source repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: genlayerlabs/genlayer-node
           token: ${{ secrets.NODE_REPO_TOKEN || secrets.GITHUB_TOKEN }}
@@ -199,7 +199,7 @@ jobs:
       sync_reports: ${{ steps.calculate.outputs.all_reports }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Download all sync artifacts
         uses: actions/download-artifact@v4
@@ -254,7 +254,7 @@ jobs:
       generation_success: ${{ steps.generate.outputs.success }}
     steps:
       - name: Checkout documentation repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
 
@@ -322,7 +322,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Checkout documentation repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -462,7 +462,7 @@ jobs:
     if: always()
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Download final artifact with sync reports
         uses: actions/download-artifact@v4