Update upper bounds for QuickCheck (#1375)

Author: lehins

servant-client-core/servant-client-core.cabal

@@ -104,7 +104,7 @@ test-suite spec
   build-depends:
       deepseq    >= 1.4.2.0  && < 1.5
     , hspec      >= 2.6.0    && < 2.8
-    , QuickCheck >= 2.12.6.1 && < 2.14
+    , QuickCheck >= 2.12.6.1 && < 2.15
 
   build-tool-depends:
     hspec-discover:hspec-discover >= 2.6.0 && <2.8

servant-client/servant-client.cabal

@@ -122,7 +122,7 @@ test-suite spec
     , hspec             >= 2.6.0    && < 2.8
     , HUnit             >= 1.6.0.0  && < 1.7
     , network           >= 2.8.0.0  && < 3.2
-    , QuickCheck        >= 2.12.6.1 && < 2.14
+    , QuickCheck        >= 2.12.6.1 && < 2.15
     , servant           == 0.18.*
     , servant-server    == 0.18.*
     , tdigest           >= 0.2     && < 0.3

servant-http-streams/servant-http-streams.cabal

@@ -115,7 +115,7 @@ test-suite spec
     , hspec             >= 2.6.0    && < 2.8
     , HUnit             >= 1.6.0.0  && < 1.7
     , network           >= 2.8.0.0  && < 3.2
-    , QuickCheck        >= 2.12.6.1 && < 2.14
+    , QuickCheck        >= 2.12.6.1 && < 2.15
     , servant           == 0.18.*
     , servant-server    == 0.18.*
     , tdigest           >= 0.2     && < 0.3