build(deps-dev): bump @babel/core from 7.8.4 to 7.8.6

Bumps [@babel/core](https://github.com/babel/babel) from 7.8.4 to 7.8.6.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.8.4...v7.8.6)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -31,7 +31,7 @@
   },
   "homepage": "https://github.com/gary-kim/saspes#readme",
   "devDependencies": {
-    "@babel/core": "^7.8.4",
+    "@babel/core": "^7.8.6",
     "@babel/register": "^7.8.3",
     "ava": "^3.3.0",
     "babel-loader": "^8.0.6",