Add flex and bison

Author: Kobzol

src/ci/docker/host-x86_64/dist-x86_64-linux/Dockerfile

@@ -34,6 +34,8 @@ RUN yum upgrade -y && \
       python3 \
       unzip \
       wget \
+      flex-devel \
+      bison-devel \
       xz \
       zlib-devel.i686 \
       zlib-devel.x86_64 \