Bump colors from 1.3.3 to 1.4.0

Bumps [colors](https://github.com/Marak/colors.js) from 1.3.3 to 1.4.0.
- [Release notes](https://github.com/Marak/colors.js/releases)
- [Commits](https://github.com/Marak/colors.js/compare/v1.3.3...v1.4.0)

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

package.json

@@ -22,7 +22,7 @@
     "big.js": "^5.2.2",
     "bitcore-lib": "^0.15.0",
     "body-parser": "^1.16.0",
-    "colors": "^1.3.0",
+    "colors": "^1.4.0",
     "command-exists": "^1.2.6",
     "commander": "^2.9.0",
     "compression": "^1.7.4",