Add missing spago dep

Author: JordanMartinez

spago.dhall

@@ -1,6 +1,13 @@
 { name = "node-event-emitters"
 , dependencies =
-  [ "effect", "either", "functions", "nullable", "prelude", "unsafe-coerce" ]
+  [ "effect"
+  , "either"
+  , "functions"
+  , "maybe"
+  , "nullable"
+  , "prelude"
+  , "unsafe-coerce"
+  ]
 , packages = ./packages.dhall
 , sources = [ "src/**/*.purs" ]
 }