python-application: Add upstream patch to fix deprecated use of collections.MutableMapping

packages/dev-python/python-application/files/08c503bdd1e128118e45fa50be256e27415bbd41.patch

@@ -0,0 +1,25 @@
+Upstream: Yes
+
+From 08c503bdd1e128118e45fa50be256e27415bbd41 Mon Sep 17 00:00:00 2001
+From: Adrian Georgescu <ag@ag-projects.com>
+Date: Sat, 1 Jan 2022 15:19:37 +0000
+Subject: [PATCH] collections.MutableMapping was deprecated since Python 3.3
+
+---
+ application/python/weakref.py | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/application/python/weakref.py b/application/python/weakref.py
+index a785a7e..38fd664 100644
+--- a/application/python/weakref.py
++++ b/application/python/weakref.py
+@@ -1,7 +1,8 @@
+ 
+ import weakref
+ 
+-from collections import MutableMapping, deque
++from collections.abc import MutableMapping
++from collections import deque
+ from copy import deepcopy
+ from threading import local
+ 

packages/dev-python/python-application/python-application-3.0.3.exheres-0

@@ -15,4 +15,7 @@ MYOPTIONS=""
 DEPENDENCIES="
     dev-python/zopeinterface[python_abis:*(-)?]
 "
+DEFAULT_SRC_PREPARE_PATCHES=(
+    "${FILES}"/08c503bdd1e128118e45fa50be256e27415bbd41.patch
+)