Add change file

Author: dmichon-msft

common/changes/@rushstack/module-minifier-plugin/module-minifier-mini-css-compat_2021-08-17-21-01.json

@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@rushstack/module-minifier-plugin",
+      "comment": "Fix compatibility issue with mini-css-extract-plugin and other plugins that introduce non-JavaScript modules and asset types.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@rushstack/module-minifier-plugin",
+  "email": "[email protected]"
+}