Bump vue from 2.5.19 to 2.5.20 in /apps/accessibility

Bumps [vue](https://github.com/vuejs/vue) from 2.5.19 to 2.5.20.
- [Release notes](https://github.com/vuejs/vue/releases)
- [Commits](https://github.com/vuejs/vue/compare/v2.5.19...v2.5.20)

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

apps/accessibility/package-lock.json

@@ -5613,9 +5613,9 @@
       }
     },
     "vue": {
-      "version": "2.5.19",
-      "resolved": "https://registry.npmjs.org/vue/-/vue-2.5.19.tgz",
-      "integrity": "sha512-zs7w/dy/yMTCcUunUl05UHhYEI2bt67R7G2jD42HnJ28JxCtC1FY8zZ9GU4PF2SJP8Ff/B9HyojWk/NztqKfFA=="
+      "version": "2.5.20",
+      "resolved": "https://registry.npmjs.org/vue/-/vue-2.5.20.tgz",
+      "integrity": "sha512-kVLZi8RWOk8qwAt+a0bVDy9VV5Zzcnj0fLCMyKLx1dmEBjqmYJYRWHvPwiypiJBtJkdmROy5NP5hyDqTdfBcvQ=="
     },
     "vue-hot-reload-api": {
       "version": "2.3.1",

apps/accessibility/package.json

@@ -12,7 +12,7 @@
 	},
 	"dependencies": {
 		"axios": "^0.18.0",
-		"vue": "^2.5.19"
+		"vue": "^2.5.20"
 	},
 	"browserslist": [
 		"last 2 versions",