Bump base bound to <4.20

bgamari · hasufell · commit e43912ff2b28 · 2023-07-02T22:23:05.000+08:00
For GHC 9.8.
diff --git a/unix.cabal b/unix.cabal
@@ -69,7 +69,7 @@ library
         buildable: False
 
     build-depends:
-        base        >= 4.10    && < 4.19,
+        base        >= 4.10    && < 4.20,
         bytestring  >= 0.9.2   && < 0.12,
         filepath    >= 1.4.100.0 && < 1.5,
         time        >= 1.2     && < 1.13
