Add isohybrid

.gitlab-ci.yml

@@ -19,6 +19,7 @@ before_script:
         pkg-config \
         software-properties-common \
         syslinux \
+        syslinux-utils \
         wget &&
     apt-key adv -q --batch --yes --keyserver keyserver.ubuntu.com --recv-keys AA12E97F0881517F &&
     add-apt-repository 'deb https://static.redox-os.org/toolchain/apt ./' &&