build(deps-dev): bump @zeit/ncc from 0.13.3 to 0.15.0

Bumps [@zeit/ncc](https://github.com/zeit/ncc) from 0.13.3 to 0.15.0.
- [Release notes](https://github.com/zeit/ncc/releases)
- [Commits](https://github.com/zeit/ncc/compare/0.13.3...0.15.0)

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

package-lock.json

@@ -137,9 +137,9 @@
       }
     },
     "@zeit/ncc": {
-      "version": "0.13.3",
-      "resolved": "https://registry.npmjs.org/@zeit/ncc/-/ncc-0.13.3.tgz",
-      "integrity": "sha512-c1H6wSDTuheSdhyPe42fjnN1ujhDVARYqbygYDhsFF0TWoyZOEmAlL9q503X15705r/b9FnKQs1qjspIZQmvvg==",
+      "version": "0.15.0",
+      "resolved": "https://registry.npmjs.org/@zeit/ncc/-/ncc-0.15.0.tgz",
+      "integrity": "sha512-t64mbGZyC5QXqT3ws4NYzg+CX1DSNVelCgJgBithoKrkCVVKoHJ9dMDeGfeIrbvAwEwax0sP/ay+Pndl+T8o7g==",
       "dev": true
     },
     "acorn": {

package.json

@@ -17,7 +17,7 @@
     "prepublishOnly": "npm run build"
   },
   "devDependencies": {
-    "@zeit/ncc": "^0.13.0",
+    "@zeit/ncc": "^0.15.0",
     "benchmark": "^2.1.4",
     "serve-marked": "0.4.0",
     "standard": "^12.0.0",