deps: bump @zeit/ncc from 0.21.0 to 0.21.1

Bumps [@zeit/ncc](https://github.com/zeit/ncc) from 0.21.0 to 0.21.1.
- [Release notes](https://github.com/zeit/ncc/releases)
- [Commits](vercel/ncc@0.21.0...0.21.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -63,7 +63,7 @@
     "@types/node-fetch": "^2.5.5",
     "@typescript-eslint/eslint-plugin": "^2.21.0",
     "@typescript-eslint/parser": "^2.21.0",
-    "@zeit/ncc": "^0.21.0",
+    "@zeit/ncc": "^0.21.1",
     "eslint": "^6.8.0",
     "eslint-plugin-jest": "^23.8.0",
     "husky": "^4.2.3",