Skip cert check for KLayout download in CI
yum install -y libuuid-devel zlib-devel java-1.8.0-openjdk-devel graphviz xorg-x11-server-Xvfb wget
# Install Klayout (for chip.show() test)
-wget https://www.klayout.org/downloads/CentOS_7/klayout-0.27.5-0.x86_64.rpm
+wget --no-check-certificate https://www.klayout.org/downloads/CentOS_7/klayout-0.27.5-0.x86_64.rpm
rpm -i klayout-0.27.5-0.x86_64.rpm
# Build surelog (install prefix defined outside file)
