Install flex and bison

Dockerfile

@@ -1,10 +1,10 @@
 FROM ubuntu:22.04
 LABEL maintainer="Frank Denis"
 SHELL ["/bin/sh", "-x", "-c"]
-ENV SERIAL 11
+ENV SERIAL 12
 
 ENV CFLAGS=-Ofast
-ENV BUILD_DEPS   curl make build-essential git libevent-dev libexpat1-dev autoconf file libssl-dev byacc
+ENV BUILD_DEPS   curl make build-essential git libevent-dev libexpat1-dev autoconf file libssl-dev flex bison
 ENV RUNTIME_DEPS bash util-linux coreutils findutils grep libssl3 ldnsutils libevent-2.1 expat ca-certificates runit runit-helper jed
 
 RUN apt-get update && apt-get -qy dist-upgrade && apt-get -qy clean && \
@@ -14,7 +14,7 @@ RUN apt-get update && apt-get -qy dist-upgrade && apt-get -qy clean && \
 RUN update-ca-certificates 2> /dev/null || true
 
 ENV UNBOUND_GIT_URL https://github.com/NLnetLabs/unbound.git
-ENV UNBOUND_GIT_REVISION 90831af981221bbce1cd7b15055562336760e484
+ENV UNBOUND_GIT_REVISION 10843805ac37002f1d9293c9835a3e68e41d392d
 
 WORKDIR /tmp