Fix typo in api error response

lib/schema/validator2.ex

@@ -384,7 +384,7 @@ defmodule Schema.Validator2 do
                   response,
                   "constraint_failed",
                   "Constraint failed: #{description};" <>
-                    " expected at least one constraint attribute, bot got none.",
+                    " expected at least one constraint attribute, but got none.",
                   extra
                 )
               end

mix.exs

@@ -10,7 +10,7 @@
 defmodule Schema.MixProject do
   use Mix.Project
 
-  @version "2.77.1"
+  @version "2.77.2"
 
   def project do
     build = System.get_env("GITHUB_RUN_NUMBER") || "SNAPSHOT"