Avoid warnings

Author: josevalim

lib/mix/tasks/esbuild.ex

@@ -27,6 +27,7 @@ defmodule Mix.Tasks.Esbuild do
   """
 
   @shortdoc "Invokes esbuild with the profile and args"
+  @compile {:no_warn_undefined, Mix}
 
   use Mix.Task
 

lib/mix/tasks/esbuild.install.ex

@@ -22,6 +22,8 @@ defmodule Mix.Tasks.Esbuild.Install do
   """
 
   @shortdoc "Installs esbuild under _build"
+  @compile {:no_warn_undefined, Mix}
+
   use Mix.Task
 
   @impl true