chore(deps): update dependency gettext to ~> 0.22

Author: renovate[bot]

mix.exs

@@ -44,7 +44,7 @@ defmodule Ketbin.MixProject do
       {:phoenix_live_dashboard, "~> 0.5"},
       {:telemetry_metrics, "~> 0.6"},
       {:telemetry_poller, "~> 0.5"},
-      {:gettext, "~> 0.18"},
+      {:gettext, "~> 0.22"},
       {:jason, "~> 1.2"},
       {:plug_cowboy, "~> 2.5"},
       {:cors_plug, "~> 3.0"},