Bump io-classes

Author: bolt12

typed-protocols/typed-protocols.cabal

@@ -32,7 +32,7 @@ library
                    , TypeOperators
                    , BangPatterns
   build-depends:     base,
-                     io-classes >= 1.0 && < 1.4
+                     io-classes >= 1.0 && < 1.5
 
   hs-source-dirs:    src
   default-language:  Haskell2010