build(deps): bump select2 from 1.0.5 to 4.0.3

Bumps [select2](https://github.com/woocommerce/selectWoo) from 1.0.5 to 4.0.3.
- [Release notes](https://github.com/woocommerce/selectWoo/releases)
- [Changelog](https://github.com/woocommerce/selectWoo/blob/trunk/CHANGELOG.txt)
- [Commits](woocommerce/selectWoo@b8b576f...566c784)

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

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

Author: dependabot[bot]

package-lock.json

@@ -28,7 +28,7 @@
 		"js-cookie": "^3.0.1",
 		"pagedjs": "^0.4.0",
 		"popper.js": "^1.16.1",
-		"select2": "github:woocommerce/selectWoo#1.0.8",
+		"select2": "github:woocommerce/selectWoo#4.0.3",
 		"sidr": "^2.2.1",
 		"tinymce": "^4.9.11",
 		"wp-admin-colors": "^6.0.0"