At the moment, the "help footer" doesn't add any new information, but if
additional flags are added later, they should appear in the footer. This
change restores this help footer:
```shell
USAGE
gh actions [flags]
INHERITED FLAGS
--help Show help for command
LEARN MORE
Use 'gh <command> <subcommand> --help' for more information about a command.
Read the manual at https://cli.github.com/manual
```