check-repo-name needs to run on e3-modules runner in order to use "make vars"

Since the check on the repository name uses make vars, it needs to run on a runner that has the NFS mounted.

Note that while one could try to parse the config files to fetch the name, this would be somewhat of a pain: consider setups such as this: https://gitlab.esss.lu.se/e3/wrappers/psi/e3-regdev/-/blob/master/configure/CONFIG_MODULE