Allow base-4.16 (anticipating GHC 9.2)

Author: andreasabel

regex-posix.cabal

@@ -89,7 +89,7 @@ library
       FlexibleInstances
 
   build-depends: regex-base == 0.94.*
-               , base       >= 4.3 && < 4.16
+               , base       >= 4.3 && < 4.17
                , containers >= 0.4 && < 0.7
                , bytestring >= 0.9 && < 0.12
                , array      >= 0.3 && < 0.6