Fix bug in envoy used in curieproxy-envoy image
Patch has been applied at
ARG RUSTBIN_TAG=latest
FROM curiefense/curiefense-rustbuild-bionic:${RUSTBIN_TAG} AS rustbin
-FROM curiefense/envoy-cf:15d1607b3035c900ea943ac8e1fed6f15598a46b AS envoy-cf
+FROM curiefense/envoy-cf:8218a88a1ae76b7657ae226e5542e6f4058d9921 AS envoy-cf
FROM envoyproxy/envoy:v1.21.1
RUN apt-get update && \
