update LTS to 13.28 with GHC-8.6.5 and fix dependency changes

jupyter.cabal

@@ -1,5 +1,5 @@
 name:                jupyter
-version:             0.9.0
+version:             0.9.1
 synopsis:            A library for creating and using Jupyter kernels.
 
 description:         An implementation of the Jupyter messaging protocol, used to implement Jupyter kernels in Haskell or communicate with existing Jupyter kernels via the messaging protocol.

src/Jupyter/Client.hs

@@ -66,6 +66,7 @@ A more detailed example is provided in the
 directory, and more information about the client and kernel interfaces can be found on the @jupyter@
 <https://github.com/gibiansky/jupyter-haskell README>.
 -}
+
 {-# LANGUAGE RecordWildCards #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE RankNTypes #-}
@@ -96,6 +97,7 @@ import           Control.Concurrent (threadDelay)
 import           Control.Exception (bracket, catch)
 import           Control.Monad (forever)
 import           Data.Maybe (fromMaybe)
+import           Control.Monad.Fail (MonadFail)
 
 -- Imports from 'bytestring'
 import           Data.ByteString (ByteString)
@@ -145,7 +147,7 @@ data ClientState = forall z.
 -- Use 'sendClientRequest' and 'sendClientComm' to construct 'Client' values, the 'Monad' interface to
 -- manipulate them, and 'runClient' to supply all needed connection info and run the action.
 newtype Client a = Client { unClient :: ReaderT ClientState IO a }
-  deriving (Functor, Applicative, Monad, MonadIO, MonadReader ClientState, MonadThrow, MonadCatch, MonadMask)
+  deriving (Functor, Applicative, Monad, MonadIO, MonadReader ClientState, MonadThrow, MonadCatch, MonadMask, MonadFail)
 
 -- | A connection to a kernel from a client.
 --

src/Jupyter/Messages.hs

@@ -1300,7 +1300,7 @@ instance ToJSON Comm where
 -- 'displayJavascript', etc, utilities; the 'Monoid' instance can be used to combine 'DisplayData'
 -- values to create values with multiple possible representations.
 newtype DisplayData = DisplayData (Map MimeType Text)
-  deriving (Eq, Ord, Show, Monoid)
+  deriving (Eq, Ord, Show, Semigroup, Monoid)
 
 -- | Create a @text/plain@ 'DisplayData' bundle out of a bit of 'Text'.
 displayPlain :: Text -> DisplayData

stack.yaml

@@ -1,4 +1,4 @@
 flags: {}
 packages:
 - '.'
-resolver: lts-6.2
+resolver: lts-13.28