Update Dockerfile

Author: ines

integrations/fastapi/Dockerfile

@@ -1,6 +1,6 @@
 FROM tiangolo/uvicorn-gunicorn-fastapi:python3.7
 COPY ./requirements.txt /app/
-RUN pip install spacy-nightly --pre
+RUN pip install spacy
 RUN pip install -r requirements.txt
 RUN ./scripts/download_models.sh
 COPY ./scripts /app/app