Update monolithic-linux.sh

Author: makslevental

.ci/monolithic-linux.sh

@@ -72,6 +72,8 @@ start-group "ninja"
 # Targets are not escaped as they are passed as separate arguments.
 ninja -C "${BUILD_DIR}" -k 0 ${targets} |& tee ninja.log
 
+ninja -C "${BUILD_DIR}" -k 0 install
+
 if [[ "${runtime_targets}" != "" ]]; then
   start-group "ninja Runtimes"