chore(deps-dev): bump rollup from 2.0.3 to 2.0.4

Bumps [rollup](https://github.com/rollup/rollup) from 2.0.3 to 2.0.4.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.0.3...v2.0.4)

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

web3.js/package-lock.json

@@ -20431,9 +20431,9 @@
       }
     },
     "rollup": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.0.3.tgz",
-      "integrity": "sha512-OjTD1pmtqCFaaoTl+zf3dXlG0FR1PudauQzAYmP5hDLLrrisXP6EuzAx9MY6En5bv61e8F6JGcVQxsVOcqFTUA==",
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.0.4.tgz",
+      "integrity": "sha512-Z/VZtyIVRBBmtyGQcRJKkwsYXHIVk9EuupprQJ7CKt8DnURQTVF6arptn5Ir/ihY0tZ166O1eTDKoi5quppXRg==",
       "dev": true,
       "requires": {
         "fsevents": "~2.1.2"

web3.js/package.json

@@ -120,7 +120,7 @@
     "marked": "^0.8.0",
     "prettier": "^1.14.3",
     "rimraf": "3.0.2",
-    "rollup": "2.0.3",
+    "rollup": "2.0.4",
     "rollup-plugin-babel": "^4.3.2",
     "rollup-plugin-commonjs": "^10.0.0",
     "rollup-plugin-copy": "^3.3.0",