Gracefully close on EoCs thrown in quote throttler

Since `tractor.MsgStream.send()` now also raises `trio.EndOfChannel`
when the stream was gracefully `Stop`ped by the peer side, also handle
that case in `.data._sampling.uniform_rate_send()`.

piker/data/_sampling.py

@@ -876,6 +876,7 @@ async def uniform_rate_send(
         except tractor.RemoteActorError as rme:
             if rme.type is not tractor._exceptions.StreamOverrun:
                 raise
+
             ctx = stream._ctx
             chan = ctx.chan
             log.warning(
@@ -892,6 +893,7 @@ async def uniform_rate_send(
             trio.ClosedResourceError,
             trio.BrokenResourceError,
             ConnectionResetError,
+            trio.EndOfChannel,
         ):
             # if the feed consumer goes down then drop
             # out of this rate limiter