chore: bumps version to 0.3.1

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@e22m4u/js-format",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "description": "Утилита интерполяции строк для JavaScript",
   "author": "Mikhail Evstropov <e22m4u@yandex.ru>",
   "license": "MIT",