Add LFS support to the workflows.

.github/workflows/go-pr.yaml

@@ -13,6 +13,11 @@ on:
         required: false
         type: number
         default: 0
+      lfs:
+        description: "Enable Git LFS checkout (for repos with large files)"
+        required: false
+        type: boolean
+        default: false
 
 # Caller must declare these permissions:
 # permissions:
@@ -194,6 +199,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
+          lfs: ${{ inputs.lfs }}
 
       - name: Run workflow prepare script
         shell: bash