…overed later (#2981)

The previous fix was actually incomplete because we update the
authorties only on the situation where we decided to reconnect because
we had a low connectivity issue. Now the problem is that
update_authority_ids use the list of connected peers, so on restart that
does contain anything, so calling immediately after
issue_connection_request won't detect all authorties, so we need to also
check every block as the comment said, but that did not match the code.

In order to make the action `Required` it should run always.

cc @ggwpez

Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>

Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>

Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>

Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>

Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>

Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>