edits to make install build process work for external repos#640

EthanMBoos wants to merge 1 commit intoUbuntu-24.04gtri/scrimmage:Ubuntu-24.04from

external-project-cmake-configuration-for-ci-cd-install-workflowsgtri/scrimmage:external-project-cmake-configuration-for-ci-cd-install-workflowsCopy head branch name to clipboard