Update version bounds for base

teiwa.cabal

@@ -45,7 +45,7 @@ executable teiwa
   other-modules:       CLI
                      , Paths_teiwa
   -- other-extensions:
-  build-depends:       base >=4.12 && <4.13
+  build-depends:       base >=4.12 && <4.15
                      , filepath
                      , mtl
                      , optparse-applicative