Fix ghc-prim constraint

Author: TravisWhitaker

ekg-core.cabal

@@ -48,7 +48,7 @@ library
   build-depends:
       base                  >=4.6 && <4.22
     , containers            >=0.5 && <0.9
-    , ghc-prim              >= 0.11 && < 0.14
+    , ghc-prim              >= 0.4 && < 0.14
     , text                  <2.2
     , unordered-containers  <0.3