mautrix-facebook: 0.4.0 -> 2022-05-06-5e2c4e7f

The current version is broken on the version of mautrix-python in nixpkgs and there are a couple fixes scattered in unreleased commits. Simply update to HEAD to get it working again.

pkgs/servers/mautrix-facebook/default.nix

@@ -1,5 +1,6 @@
 { enableSystemd ? stdenv.isLinux
 , fetchFromGitHub
+, fetchpatch
 , lib
 , python3
 , stdenv
@@ -7,13 +8,13 @@
 
 python3.pkgs.buildPythonPackage rec {
   pname = "mautrix-facebook";
-  version = "0.4.0";
+  version = "unstable-2022-05-06";
 
   src = fetchFromGitHub {
     owner = "mautrix";
     repo = "facebook";
-    rev = "v${version}";
-    hash = "sha256-Yc8W8A11dnXrJdLtu/rJHTVlu2pEawXn5xuT8Ez+h9U=";
+    rev = "5e2c4e7f5a38e3c5d984d690c0ebee9b6bb4768c";
+    hash = "sha256-ukFtVRrmaJVVwgp5siwEwbfq6Yq5rmu3XJA5H2n/eJU=";
   };
 
   propagatedBuildInputs = with python3.pkgs; [