The context of the invocation of `git push` "internally" by the
remote helper is the same as by the user invoking `git push` most
of the time. That is, these pushes run within the same repository,
thus the configuration for pre-push hooks applies to both. This
leads to every push being verified *twice*.
If the user intends to configure pre-push hooks, then they would
do that on the remote with URL `rad://…`, and so the hook would
be executed before `git-remote-rad` even gets called.
We thus specify `--no-verify` to not verify again.
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