chore: add support image for eas builds

Author: steve192

.github/workflows/build-support-images.yml

@@ -59,7 +59,7 @@ jobs:
         uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
         with:
           context: .
-          file: "{context}/Dockerfile.builder"
+          file: "Dockerfile.builder"
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           labels: ${{ steps.meta.outputs.labels }}