Bump vue-loader from 15.4.1 to 15.4.2 in /apps/updatenotification

Bumps [vue-loader](https://github.com/vuejs/vue-loader) from 15.4.1 to 15.4.2.
- [Release notes](https://github.com/vuejs/vue-loader/releases)
- [Changelog](https://github.com/vuejs/vue-loader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vue-loader/commits)

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

apps/updatenotification/package-lock.json

@@ -2544,7 +2544,7 @@
     },
     "is-obj": {
       "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/is-obj/-/is-obj-1.0.1.tgz",
+      "resolved": "http://registry.npmjs.org/is-obj/-/is-obj-1.0.1.tgz",
       "integrity": "sha1-PkcprB9f3gJc19g6iW2rn09n2w8=",
       "dev": true
     },
@@ -4345,9 +4345,9 @@
       "dev": true
     },
     "vue-loader": {
-      "version": "15.4.1",
-      "resolved": "https://registry.npmjs.org/vue-loader/-/vue-loader-15.4.1.tgz",
-      "integrity": "sha512-+9EgqF7YHcZG0wosbXij9qSzz7Ep1QNOk4a3asTyf5XC9kDud2R4aNAwQP65bELyKwWjcGm8sv7ChYndodxijw==",
+      "version": "15.4.2",
+      "resolved": "https://registry.npmjs.org/vue-loader/-/vue-loader-15.4.2.tgz",
+      "integrity": "sha512-nVV27GNIA9MeoD8yQ3dkUzwlAaAsWeYSWZHsu/K04KCD339lW0Jv2sJWsjj3721SP7sl2lYdPmjcHgkWQSp5bg==",
       "dev": true,
       "requires": {
         "@vue/component-compiler-utils": "^2.0.0",

apps/updatenotification/package.json

@@ -30,7 +30,7 @@
   "devDependencies": {
     "css-loader": "^1.0.0",
     "file-loader": "^1.1.11",
-    "vue-loader": "^15.4.1",
+    "vue-loader": "^15.4.2",
     "vue-template-compiler": "^2.5.17",
     "webpack": "^4.17.2",
     "webpack-cli": "^3.1.0",