Log Message:
p5-IO-Async: update to 0.78.

0.78    2021-01-21
        [CHANGES]
         * Warn on attempts to ->connect to INADDR(6)_LOOPBACK as some OSes
           (e.g. OpenBSD) do not allow it
         * Various fixes for IO::Async::LoopTests to better support
           IO::Async::Loop::UV:
            + Insert some ->loop_once(0) calls between timing tests to allow
              libuv to clear its pending queues
            + Allow loops to declare that they cannot perform all-child PID
              watch and skip the relevant tests for it if so
         * Have $loop->later return a future instance if not passed any code
           (RT133240)

        [BUGFIXES]
         * Accept more error codes for failure to resolve missing hostname
           (RT131109)
         * Defend against some undef values at global destruction time
           (RT132677)