python3Packages.agent-py: replace async-timeout with asyncio.timeout

pkgs/development/python-modules/agent-py/default.nix

@@ -2,6 +2,7 @@
   aiohttp,
   buildPythonPackage,
   fetchFromGitHub,
+  fetchpatch,
   lib,
   setuptools,
   pytestCheckHook,
@@ -19,6 +20,15 @@ buildPythonPackage rec {
     hash = "sha256-PP4gQ3AFYLJPUt9jhhiV9HkfBhIzd+JIsGpgK6FNmaE=";
   };
 
+  patches = [
+    # https://github.com/ispysoftware/agent-py/pull/4
+    (fetchpatch {
+      name = "replace-async-timeout-with-asyncio.timeout.patch";
+      url = "https://github.com/ispysoftware/agent-py/commit/2d7bcf46dce9bc733ce243858f0e91ced512c72d.patch";
+      hash = "sha256-G/C/e/F+xtUH+2a7mNhhKONqVjYvLHt5/I75WGafl0w=";
+    })
+  ];
+
   build-system = [ setuptools ];
 
   dependencies = [ aiohttp ];