upgrade package

Author: noodle1983

Packages/manifest.json

@@ -8,7 +8,7 @@
     "com.unity.ide.rider": "3.0.27",
     "com.unity.ide.visualstudio": "2.0.22",
     "com.unity.ide.vscode": "1.2.5",
-    "com.unity.purchasing": "4.9.4",
+    "com.unity.purchasing": "4.12.2",
     "com.unity.test-framework": "1.1.33",
     "com.unity.textmeshpro": "3.0.6",
     "com.unity.timeline": "1.7.6",