Forgot to quote string

Author: csparker247

.github/workflows/build_docker.yml

@@ -57,7 +57,7 @@ jobs:
         with:
           file: ./Dockerfile.base
           build-args: |
-            BASE_IMAGE_VERSION=${{ steps.major_version.outputs.version || bookworm-slim }}
+            BASE_IMAGE_VERSION=${{ steps.major_version.outputs.version || "bookworm-slim" }}
             CI_DOCKER_VERSION=${{ steps.meta.outputs.version || github.sha }}
           push: ${{ github.event_name != 'pull_request' }}
           platforms: linux/amd64,linux/arm64