Reduce packaging requirement.

domdfcoding · domdfcoding · commit 2a1ced11c564 · 2026-01-07T09:19:08.000Z
diff --git a/requirements.txt b/requirements.txt
@@ -4,5 +4,5 @@ configconfig>=0.4.0
 consolekit>=0.4.0
 dom-toml>=0.2.0
 domdf-python-tools>=3.2.0
-packaging>=25.0
+packaging>=20.9
 shippinglabel>=0.1.0
