Bump vue from 2.6.11 to 3.0.0

Bumps [vue](https://github.com/vuejs/core) from 2.6.11 to 3.0.0.
- [Release notes](https://github.com/vuejs/core/releases)
- [Changelog](https://github.com/vuejs/core/blob/v3.0.0/CHANGELOG.md)
- [Commits](https://github.com/vuejs/core/commits/v3.0.0)

---
updated-dependencies:
- dependency-name: vue
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package-lock.json

@@ -15,7 +15,7 @@
     "core-js": "^3.6.5",
     "emailjs-com": "^2.4.1",
     "intersection-observer": "^0.10.0",
-    "vue": "^2.6.11",
+    "vue": "^3.0.0",
     "vue-naver-maps": "^0.12.1",
     "vue-router": "^3.2.0",
     "vuetify": "^2.2.11"