bump ghc-prim dependency to support ghc 9.4

stub/ghc-debug-stub.cabal

@@ -26,7 +26,7 @@ library
   build-depends:       base >=4.16 && < 5
                      , directory ^>= 1.3
                      , filepath ^>= 1.4
-                     , ghc-prim ^>= 0.8
+                     , ghc-prim ^>= 0.8 || ^>= 0.9.0
                      , ghc-debug-convention == 0.4.0.0
   default-language:    Haskell2010
   cxx-sources:         cbits/stub.cpp, cbits/socket.cpp, cbits/trace.cpp