fix: enable Git LFS checkout in GitHub Actions workflows

- Added 'lfs: true' to all checkout steps in workflows
- Ensures Docker builds get the actual database file, not LFS pointer
- Required after migrating nodes.db to Git LFS

.github/workflows/docker-build-fast.yml

@@ -26,6 +26,8 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+        with:
+          lfs: true
         
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3

.github/workflows/docker-build.yml

@@ -27,6 +27,8 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+        with:
+          lfs: true
         
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3

.github/workflows/update-n8n-deps.yml

@@ -32,6 +32,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
+          lfs: true
       
       - name: Setup Node.js
         uses: actions/setup-node@v4
@@ -190,6 +191,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
+          lfs: true
       
       - name: Setup Node.js
         uses: actions/setup-node@v4