hackney 4.8.4

Fixed

• hackney:close/1 on a shared pooled HTTP/2 connection resets only the
  caller's own streams. It stopped the connection, failing every other
  caller's streams on it. The connection still closes itself once idle with
  no stream open.
• A connection opened without a pool honours connect_timeout above 8
  seconds, and a dial that outlives it returns {error, connect_timeout}.
  The wait was capped at 8 seconds and ended as an exit in the caller. A
  dial stuck in the transport no longer holds the caller past its deadline
  either (#945).