Ensure that erts app is loaded

It's not loaded by default but we rely on app controller in a few places

Author: lukaszsamson

apps/elixir_ls_debugger/lib/debugger/cli.ex

@@ -4,6 +4,7 @@ defmodule ElixirLS.Debugger.CLI do
   alias ElixirLS.Debugger.{Output, Server}
 
   def main do
+    Application.load(:erts)
     Application.put_env(:elixir, :ansi_enabled, false)
     WireProtocol.intercept_output(&Output.debuggee_out/1, &Output.debuggee_err/1)
     Launch.start_mix()

apps/language_server/lib/language_server/cli.ex

@@ -5,6 +5,7 @@ defmodule ElixirLS.LanguageServer.CLI do
   require Logger
 
   def main do
+    Application.load(:erts)
     Application.put_env(:elixir, :ansi_enabled, false)
     WireProtocol.intercept_output(&JsonRpc.print/1, &JsonRpc.print_err/1)