chore(release): set package.json to 3.9.1 [skip ci]

## [3.9.1](v3.9.0...v3.9.1) (2022-12-08)

### Bug Fixes

* [#73](#73) made it possible to merge default and custom localization dicts ([184c78e](184c78e))

package.json

@@ -1,6 +1,6 @@
 {
   "name": "just-validate",
-  "version": "3.9.0",
+  "version": "3.9.1",
   "description": "Modern, simple, lightweight (~5kb gzip) form validation library written in Typescript, with no dependencies (no JQuery!). Support a wide range of predefined rules, async, files, dates validation, custom error messages and styles, localization. Support writing custom rules and plugins.",
   "scripts": {
     "lint-md": "remark . --output",