Permissions of prompt:kube-ps1.sh causes issues with Linux operation as non-root user about geodesic

[Nuru]

This is one of a number of issues that we sidestep by running as root. (Note that the file in question, /etc/profile.d/prompt:kube-ps1.sh, is not a file in our repo, it is installed at build time from the jonmosco/kube-ps1 project.)

Geodesic is big, complex, and designed to be run with the internal user as root. This is one of only several dozen known issues with trying to run Geodesic as a non-root user, and we have not seen enough benefits from running as non-root to justify the effort of adapting Geodesic to run that way. (See #710 for more details.) It seems a more efficient path is to instead simply mitigate any issues caused by running as root, and we continue to work in that direction. Now that Docker supports rootless mode, the security implications of running as root from within the container should be minimal.