chore(deps): bump select2 from 3.5.1 to 4.0.6

Bumps [select2](https://github.com/select2/select2) from 3.5.1 to 4.0.6.
- [Release notes](https://github.com/select2/select2/releases)
- [Changelog](https://github.com/select2/select2/blob/develop/CHANGELOG.md)
- [Commits](select2/select2@3.5.1...4.0.6)

---
updated-dependencies:
- dependency-name: select2
  dependency-version: 4.0.6
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -8,7 +8,7 @@
     "url": "https://github.com/forms-angular/fng-ui-select"
   },
   "dependencies": {
-    "select2":"^3.5.1",
+    "select2":"^4.0.6",
     "ui-select":"^0.19.8"
   },
   "engines": {