Relax upper version bounds for containers and ghc-events

Author: Mitsutoshi Aoe

threadscope.cabal

@@ -55,8 +55,8 @@ Executable threadscope
                      array < 0.6,
                      mtl < 2.3,
                      filepath < 1.5,
-                     ghc-events >= 0.5 && < 0.8,
-                     containers >= 0.2 && < 0.6,
+                     ghc-events >= 0.5 && < 0.9,
+                     containers >= 0.2 && < 0.7,
                      deepseq >= 1.1,
                      text < 1.3,
                      time >= 1.1 && < 1.10,