Update dependency base to v4.21

renovate[bot] · web-flow · commit fcfb3e0d6326 · 2025-09-23T11:05:48.000Z
New-Versions:
  base==4.21.0.0
diff --git a/pureMD5.cabal b/pureMD5.cabal
@@ -20,7 +20,7 @@ flag test
 
 Library
   Build-Depends:
-    , base >=4.18 && <4.21
+    , base >=4.18 && <4.22
     , bytestring >=0.11 && <0.13
     , binary >=0.8.9 && <0.9
     , cereal >=0.5.8.3 && <0.6
