Bump @zeit/ncc from 0.20.5 to 0.21.0

Bumps [@zeit/ncc](https://github.com/zeit/ncc) from 0.20.5 to 0.21.0.
- [Release notes](https://github.com/zeit/ncc/releases)
- [Commits](https://github.com/zeit/ncc/compare/0.20.5...0.21.0)

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

package-lock.json

@@ -685,9 +685,9 @@
       "dev": true
     },
     "@zeit/ncc": {
-      "version": "0.20.5",
-      "resolved": "https://registry.npmjs.org/@zeit/ncc/-/ncc-0.20.5.tgz",
-      "integrity": "sha512-XU6uzwvv95DqxciQx+aOLhbyBx/13ky+RK1y88Age9Du3BlA4mMPCy13BGjayOrrumOzlq1XV3SD/BWiZENXlw==",
+      "version": "0.21.0",
+      "resolved": "https://registry.npmjs.org/@zeit/ncc/-/ncc-0.21.0.tgz",
+      "integrity": "sha512-RUMdvVK/w78oo+yBjruZltt0kJXYar2un/1bYQ2LuHG7GmFVm+QjxzEmySwREctaJdEnBvlMdUNWd9hXHxEI3g==",
       "dev": true
     },
     "abab": {

package.json

@@ -36,7 +36,7 @@
     "devDependencies": {
         "@types/jest": "^24.0.25",
         "@types/node": "^12.12.21",
-        "@zeit/ncc": "^0.20.5",
+        "@zeit/ncc": "^0.21.0",
         "jest": "^24.9.0",
         "jest-circus": "^24.9.0",
         "ts-jest": "^24.3.0",