Bump vue-i18n from 8.26.7 to 8.26.8 in /vue

Bumps [vue-i18n](https://github.com/kazupon/vue-i18n) from 8.26.7 to 8.26.8.
- [Release notes](https://github.com/kazupon/vue-i18n/releases)
- [Changelog](https://github.com/kazupon/vue-i18n/blob/v8.x/CHANGELOG.md)
- [Commits](https://github.com/kazupon/vue-i18n/compare/v8.26.7...v8.26.8)

---
updated-dependencies:
- dependency-name: vue-i18n
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

vue/package.json

@@ -24,7 +24,7 @@
         "vue-click-outside": "^1.1.0",
         "vue-clickaway": "^2.2.2",
         "vue-cookies": "^1.7.4",
-        "vue-i18n": "^8.26.5",
+        "vue-i18n": "^8.26.8",
         "vue-infinite-loading": "^2.4.5",
         "vue-multiselect": "^2.1.6",
         "vue-property-decorator": "^9.1.2",