build(deps): bump vue from 2.6.12 to 3.0.0

Bumps [vue](https://github.com/vuejs/core) from 2.6.12 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] <support@github.com>

examples/hello/package.json

@@ -20,7 +20,7 @@
     "@lingui/macro": "^3.7.2",
     "babel-plugin-macros": "^2.8.0",
     "core-js": "^3.6.5",
-    "vue": "^2.6.12"
+    "vue": "^3.0.0"
   },
   "devDependencies": {
     "@lingui/cli": "^3.7.2",

package.json

@@ -12,7 +12,7 @@
     "@lingui/macro": "^3.8.1",
     "babel-plugin-macros": "^2.8.0",
     "core-js": "^3.6.5",
-    "vue": "^2.6.12"
+    "vue": "^3.0.0"
   },
   "devDependencies": {
     "@lingui/cli": "^3.7.2",