dev/remote/automated_registration: Pass string URLs to request (#1580)
dev/remote/automated_registration: Pass string URLs to request (#1580)

Otherwise, for some yet undiscovered reason, a third-party dependency
seems to be passing a broken URL object to electron-proxy-agent which
then messes up HTTPS with port 80.

Used to be a string before refactoring anyway.
Not even sure `request*` & `*fetch` can handle an URL object either.
cozy-labs/cozy-desktop,cozy-labs/cozy-desktop,cozy-labs/cozy-desktop,cozy-labs/cozy-desktop