build: add curl to ep image (#4456)

Add curl to ep image

docker/build_and_push_ep.Dockerfile

@@ -67,6 +67,9 @@ FROM python:3.12.3-slim AS runtime
 RUN useradd user -u 1000 -g 0 --no-create-home --home-dir /app/data
 COPY --from=builder --chown=1000 /app/.venv /app/.venv
 
+# curl is required for langflow health checks
+RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/*
+
 # Place executables in the environment at the front of the path
 ENV PATH="/app/.venv/bin:$PATH"