chore(deps-dev): bump np from 5.2.1 to 6.0.0 (#456)

Bumps [np](https://github.com/sindresorhus/np) from 5.2.1 to 6.0.0.
- [Release notes](https://github.com/sindresorhus/np/releases)
- [Commits](sindresorhus/np@v5.2.1...v6.0.0)

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

Author: dependabot-preview[bot]

package.json

@@ -59,7 +59,7 @@
     "enzyme-to-json": "^3.4.0",
     "father": "^2.13.2",
     "jsonp": "^0.2.1",
-    "np": "^5.0.3",
+    "np": "^6.0.0",
     "rc-dialog": "^7.5.5",
     "typescript": "^3.5.2"
   }