Bump bytestring upper bound (#116)

Author: bgamari

parsec.cabal

@@ -66,7 +66,7 @@ library
     build-depends:
         base       >= 4.5.0   && < 4.17,
         mtl        >= 1.1.1   && < 2.3,
-        bytestring >= 0.9.2.1 && < 0.11,
+        bytestring >= 0.9.2.1 && < 0.12,
         text      (>= 0.11.3.1 && < 0.12)
                || (>= 1.0.0.0  && < 1.3)