matrix-synapse: 1.7.1 -> 1.7.2

https://github.com/matrix-org/synapse/releases/tag/1.7.2

Building for now with Python 3.7 as Python 3.8.1 changed it's behavior
regarding URL parsing[1] which broke one of its dependencies[2].

[1] https://bugs.python.org/issue27657
[2] https://hydra.nixos.org/build/108652790 / mozilla/bleach#503

pkgs/servers/matrix-synapse/default.nix

@@ -23,11 +23,11 @@ let
 
 in buildPythonApplication rec {
   pname = "matrix-synapse";
-  version = "1.7.1";
+  version = "1.7.2";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1aix4n4nk90xh6y3w3gvq3wzvykzz7mhj9isl437nid7mf9mcj6n";
+    sha256 = "1nhzjmxzv5bvihl58cdpjw3hdghbh2pz7sg437k841mjn1qqq5lx";
   };
 
   patches = [

pkgs/top-level/all-packages.nix

@@ -4477,7 +4477,9 @@ in
 
   makebootfat = callPackage ../tools/misc/makebootfat { };
 
-  matrix-synapse = callPackage ../servers/matrix-synapse { python3 = python38; };
+  /* Python 3.8 is currently broken with matrix-synapse since `python38Packages.bleach` fails
+    (https://github.com/NixOS/nixpkgs/issues/76093) */
+  matrix-synapse = callPackage ../servers/matrix-synapse { /*python3 = python38;*/ };
 
   matrix-appservice-slack = callPackage ../servers/matrix-synapse/matrix-appservice-slack {};