Bump select2 from 4.0.5 to 4.0.8

Bumps [select2](https://github.com/select2/select2) from 4.0.5 to 4.0.8.
- [Release notes](https://github.com/select2/select2/releases)
- [Changelog](https://github.com/select2/select2/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/select2/select2/compare/4.0.5...4.0.8)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

docs/source/releases/v2.1.rst

 ~~~~~~~~~~~~~~~~~~
 
 - Upgraded ``django-phonenumber-field`` to use the latest in the 3.x series.
+- Upgraded ``select2`` to version 4.0.8.
 
 .. _deprecated_features_in_2.1:
 

package-lock.json

         }
       }
     },
-    "almond": {
-      "version": "0.3.3",
-      "resolved": "https://registry.npmjs.org/almond/-/almond-0.3.3.tgz",
-      "integrity": "sha1-oOfJWsdiTWQXtElLHmi/9pMWiiA=",
-      "dev": true
-    },
     "ansi-colors": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-1.1.0.tgz",
       "dev": true
     },
     "select2": {
-      "version": "4.0.5",
-      "resolved": "https://registry.npmjs.org/select2/-/select2-4.0.5.tgz",
-      "integrity": "sha1-eqxQaSVhmFs007guxV4ib4lg1Ao=",
-      "dev": true,
-      "requires": {
-        "almond": "~0.3.1",
-        "jquery-mousewheel": "~3.1.13"
-      }
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/select2/-/select2-4.0.8.tgz",
+      "integrity": "sha512-H/I2mq71oiEe51S74hdUv4QubH1EJNLEMnjfQucftLa8GiuT5+RKIHwlV/7I/YUqZg0wsYQM946eFG/ntRPF/Q==",
+      "dev": true
     },
     "select2-bootstrap-theme": {
       "version": "0.1.0-beta.10",

package.json

     "less": "^3.9.0",
     "pump": "^3.0.0",
     "require-dir": "^1.2.0",
-    "select2": "4.0.5",
+    "select2": "4.0.8",
     "select2-bootstrap-theme": "0.1.0-beta.10",
     "tinymce": "^4.8.3"
   },