Bump vnu-jar from 20.5.29 to 20.6.30 (#338)

Bumps [vnu-jar](https://github.com/validator/validator) from 20.5.29 to 20.6.30.
- [Release notes](https://github.com/validator/validator/releases)
- [Changelog](https://github.com/validator/validator/blob/master/CHANGELOG.md)
- [Commits](validator/validator@20.5.29...20.6.30)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -53,7 +53,7 @@
     "stylelint-config-twbs-bootstrap": "^2.0.3",
     "svg-sprite": "^1.5.0",
     "svgo": "^1.3.2",
-    "vnu-jar": "20.5.29"
+    "vnu-jar": "20.6.30"
   },
   "engines": {
     "node": ">=10"