Bump vue-router from 3.0.6 to 3.1.5

Bumps [vue-router](https://github.com/vuejs/vue-router) from 3.0.6 to 3.1.5.
- [Release notes](https://github.com/vuejs/vue-router/releases)
- [Changelog](https://github.com/vuejs/vue-router/blob/dev/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vue-router/compare/v3.0.6...v3.1.5)

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

package.json

@@ -56,7 +56,7 @@
     "superagent": "^5.2.1",
     "vue": "^2.6.11",
     "vue-loader": "^15.8.3",
-    "vue-router": "^3.0.1",
+    "vue-router": "^3.1.5",
     "vue-server-renderer": "^2.6.11",
     "vue-template-compiler": "^2.6.11",
     "vuex": "^3.1.2",