chore(deps-dev): bump @babel/core from 7.14.8 to 7.15.0

Bumps [@babel/core](https://github.com/babel/babel/tree/HEAD/packages/babel-core) from 7.14.8 to 7.15.0.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.15.0/packages/babel-core)

---
updated-dependencies:
- dependency-name: "@babel/core"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -39,7 +39,7 @@
     "magic-string": "0.25.7"
   },
   "devDependencies": {
-    "@babel/core": "7.14.8",
+    "@babel/core": "7.15.0",
     "@babel/parser": "7.14.8",
     "@babel/preset-env": "7.14.8",
     "@babel/register": "7.14.5",