Bump vue and vue-template-compiler

Bumps [vue](https://github.com/vuejs/vue) and [vue-template-compiler](https://github.com/vuejs/vue). These dependencies needed to be updated together.

Updates `vue` from 2.6.11 to 2.6.12
- [Release notes](https://github.com/vuejs/vue/releases)
- [Commits](https://github.com/vuejs/vue/compare/v2.6.11...v2.6.12)

Updates `vue-template-compiler` from 2.6.11 to 2.6.12
- [Release notes](https://github.com/vuejs/vue/releases)
- [Commits](https://github.com/vuejs/vue/compare/v2.6.11...v2.6.12)

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

package.json

@@ -49,7 +49,7 @@
 		"nextcloud-vue-collections": "^0.8.1",
 		"p-queue": "^6.6.0",
 		"url-search-params-polyfill": "^8.1.0",
-		"vue": "^2.6.11",
+		"vue": "^2.6.12",
 		"vue-at": "^2.5.0-beta.2",
 		"vue-click-outside": "^1.1.0",
 		"vue-easymde": "^1.2.2",
@@ -104,7 +104,7 @@
 		"vue-jest": "^3.0.6",
 		"vue-loader": "^15.9.3",
 		"vue-style-loader": "^4.1.1",
-		"vue-template-compiler": "^2.6.11",
+		"vue-template-compiler": "^2.6.12",
 		"webpack": "^4.44.1",
 		"webpack-cli": "^3.3.12",
 		"webpack-dev-server": "^3.11.0",