Bump pgproto dep

1st1 · 1st1 · commit 97aad83d81c8 · 2018-10-12T12:54:49.000-04:00
diff --git a/asyncpg/pgproto b/asyncpg/pgproto
@@ -1 +1 @@
-Subproject commit 3f9a5068617423a54c7c9ab772b54ce51dfab218
+Subproject commit 7ff919d4c1b3729850ac97806ab67710bb1ff10b
