mobimo/assets#42 Add yq as a new tool

Dockerfile

@@ -52,6 +52,7 @@ RUN echo 'hosts: files dns' > /etc/nsswitch.conf && \
       echo >&2 "error: failed to download 'yq'"; \
       exit 1; \
     fi && \
+    chmod +x /usr/local/bin/yq && \
     \
     mkdir -p /root/.ssh && \
     echo "StrictHostKeyChecking no" >> /root/.ssh/config && \