chore(deps-dev): bump less-loader from 7.3.0 to 8.0.0 (#270)

Bumps [less-loader](https://github.com/webpack-contrib/less-loader) from 7.3.0 to 8.0.0.
- [Release notes](https://github.com/webpack-contrib/less-loader/releases)
- [Changelog](https://github.com/webpack-contrib/less-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/less-loader@v7.3.0...v8.0.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

package.json

@@ -43,7 +43,7 @@
     "eslint-plugin-import": "^2.20.2",
     "eslint-plugin-vue": "^7.1.0",
     "less": "^3.0.4",
-    "less-loader": "^7.0.2",
+    "less-loader": "^8.0.0",
     "vue": "^2.6.11",
     "vue-router": "^3.3.4",
     "vue-template-compiler": "^2.6.11"