fix: remove whitespace

Author: aiakide

docker/jupyter/Dockerfile

@@ -66,7 +66,7 @@ COPY ../../poetry.lock pyproject.toml ./
 
 # install runtime deps - uses $POETRY_VIRTUALENVS_IN_PROJECT internally
 RUN --mount=type=cache,target=/root/.cache \
-    poetry install --with dagster,mlflow, dagster-webserver
+    poetry install --with dagster,mlflow,dagster-webserver
 
 ################################
 # PRODUCTION