Use httpx as http client in docker healthcheck

Dockerfile-Gunicorn

@@ -2,9 +2,9 @@ FROM tiangolo/uvicorn-gunicorn-fastapi:python3.10-slim
 EXPOSE 8000
 ENV PORT=8000
 
-RUN apt-get update && apt-get -y install curl
+RUN pip install --no-cache-dir httpx[cli]
 
-HEALTHCHECK --interval=35s --timeout=4s CMD curl -f http://localhost:$PORT/health || exit 1
+HEALTHCHECK --interval=35s --timeout=4s CMD httpx http://localhost:$PORT/health || exit 1
 
 COPY ./scripts/prestart.sh /app/prestart.sh
 COPY ./requirements.txt /app/requirements.txt