Bump version

Author: Noarkhh

README.md

@@ -17,7 +17,7 @@ Add the following line to your `deps` in `mix.exs`. Run `mix deps.get`.
 ```elixir
 def deps do
   [
-    {:membrane_sdl_plugin, "~> 0.18.2"}
+    {:membrane_sdl_plugin, "~> 0.18.3"}
   ]
 end
 ```

mix.exs

@@ -1,7 +1,7 @@
 defmodule Membrane.SDL.Plugin.MixProject do
   use Mix.Project
 
-  @version "0.18.2"
+  @version "0.18.3"
   @github_url "https://github.com/membraneframework/membrane_sdl_plugin"
 
   def project do