feat: allowed custom specification of workers in Dockerfile

Author: JanssenBrm

dockerfile

@@ -16,4 +16,6 @@ COPY . .
 
 EXPOSE 8000
 
-CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--proxy-headers"]
+ENV WORKERS=3
+
+CMD ["sh", "-c", "uvicorn app.main:app --host 0.0.0.0 --port 8000 --proxy-headers --workers ${WORKERS}"]