Dockerfile: update yamllint to v1.27.1

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Dockerfile

@@ -350,7 +350,8 @@ RUN update-alternatives --set iptables  /usr/sbin/iptables-legacy  || true \
  && update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy || true \
  && update-alternatives --set arptables /usr/sbin/arptables-legacy || true
 
-RUN pip3 install yamllint==1.26.1
+ARG YAMLLINT_VERSION=1.27.1
+RUN pip3 install yamllint==${YAMLLINT_VERSION}
 
 COPY --from=dockercli     /build/ /usr/local/cli
 COPY --from=frozen-images /build/ /docker-frozen-images