Bump vue-loader from 15.9.7 to 15.9.8

Bumps [vue-loader](https://github.com/vuejs/vue-loader) from 15.9.7 to 15.9.8.
- [Release notes](https://github.com/vuejs/vue-loader/releases)
- [Changelog](https://github.com/vuejs/vue-loader/blob/master/CHANGELOG.md)
- [Commits](vuejs/vue-loader@v15.9.7...v15.9.8)

---
updated-dependencies:
- dependency-name: vue-loader
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Signed-off-by: nextcloud-command <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -123,7 +123,7 @@
     "sinon-chai": "^3.5.0",
     "style-loader": "^2.0.0",
     "url-loader": "^4.1.1",
-    "vue-loader": "^15.9.7",
+    "vue-loader": "^15.9.8",
     "vue-template-compiler": "^2.6.12",
     "webpack": "^4.46.0",
     "webpack-cli": "^4.4.0",