You will be able to change the name of a repository by using this comand
gh extension install teresaUll/gh-repo-rename
Usage: gh-repo-rename [options]
Options:
-V, --version output the version number
-r, --repo <repo> repository
-o, --org <org> org
-n, --name <name> name
-h, --help display help for command
Teresa Bonet