update(build): install libelf in the nodriver image

Signed-off-by: Luca Guerra <luca@guerra.sh>

docker/no-driver/Dockerfile

@@ -28,7 +28,7 @@ LABEL org.opencontainers.image.source="https://github.com/falcosecurity/falco"
 LABEL usage="docker run -i -t --privileged -v /var/run/docker.sock:/host/var/run/docker.sock -v /dev:/host/dev -v /proc:/host/proc:ro --name NAME IMAGE"
 # NOTE: for the "least privileged" use case, please refer to the official documentation
 
-RUN apt-get -y update && apt-get -y install ca-certificates curl jq \
+RUN apt-get -y update && apt-get -y install ca-certificates curl jq libelf1 \
     && apt clean -y && rm -rf /var/lib/apt/lists/*
 
 ENV HOST_ROOT /host