feat: remove duplicate gunicorn install

api/Dockerfile

@@ -18,8 +18,6 @@ WORKDIR /app/api
 RUN apt-get update && \
     apt-get install -y bash curl wget vim gcc g++ python3-dev libc-dev libffi-dev
 
-RUN pip3 install gunicorn
-
 COPY requirements.txt /app/api/requirements.txt
 
 RUN pip install -r requirements.txt

api/requirements.txt

@@ -8,7 +8,7 @@ flask-migrate~=4.0.4
 flask-restful==0.3.9
 flask-session2==1.3.1
 flask-cors==3.0.10
-gunicorn~=20.1.0
+gunicorn~=21.2.0
 gevent~=22.10.2
 langchain==0.0.239
 openai~=0.27.8