Relax upper bounds on base to support GHC 9.12

Tested locally with GHC9.12-alpha1

Author: Shimuuar

vector-stream/vector-stream.cabal

@@ -49,7 +49,7 @@ Library
   Hs-Source-Dirs:
         src
 
-  Build-Depends: base >= 4.9 && < 4.21
+  Build-Depends: base >= 4.9 && < 4.22
                , ghc-prim >= 0.2 && < 0.12
 
 source-repository head

vector/vector.cabal

@@ -160,7 +160,7 @@ Library
   Install-Includes:
         vector.h
 
-  Build-Depends: base >= 4.9 && < 4.21
+  Build-Depends: base >= 4.9 && < 4.22
                , primitive >= 0.6.4.0 && < 0.10
                , deepseq >= 1.1 && < 1.6
                , vector-stream >= 0.1 && < 0.2