chore: bump dumi version

Author: PeachScript

package.json

@@ -64,7 +64,7 @@
     "coveralls": "^3.0.6",
     "cross-env": "^7.0.3",
     "cssstyle": "^2.3.0",
-    "dumi": "^2.0.13",
+    "dumi": "^2.1.2",
     "eslint": "^7.0.0",
     "father": "^4.1.1",
     "gh-pages": "^3.1.0",