chore(deps-dev): bump rollup from 1.7.3 to 1.7.4

Bumps [rollup](https://github.com/rollup/rollup) from 1.7.3 to 1.7.4.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/commits)

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

web3.js/package-lock.json

@@ -16560,9 +16560,9 @@
       }
     },
     "rollup": {
-      "version": "1.7.3",
+      "version": "1.7.4",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-1.7.3.tgz",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-1.7.4.tgz",
-      "integrity": "sha512-U3/HaZujvGofNZQldfIknKoaNFNRS+j8/uCS/jSy3FrxF9t0FBsgZW4+VXLHG7l1daTgE6+jEy0Dv7cVCB2NPg==",
+      "integrity": "sha512-nc86fETLHdozhRWlW/uNVIQ7ODuA1vU2/L8znAxP9TNMx1NA6GTth3llqoxxCle2kkyui+OfGzbKaQxD60NJjA==",
       "dev": true,
       "requires": {
         "@types/estree": "0.0.39",
@@ -16571,9 +16571,9 @@
       },
       "dependencies": {
         "@types/node": {
-          "version": "11.11.6",
+          "version": "11.12.0",
-          "resolved": "https://registry.npmjs.org/@types/node/-/node-11.11.6.tgz",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-11.12.0.tgz",
-          "integrity": "sha512-Exw4yUWMBXM3X+8oqzJNRqZSwUAaS4+7NdvHqQuFi/d+synz++xmX3QIf+BFqneW8N31R8Ky+sikfZUXq07ggQ==",
+          "integrity": "sha512-Lg00egj78gM+4aE0Erw05cuDbvX9sLJbaaPwwRtdCdAMnIudqrQZ0oZX98Ek0yiSK/A2nubHgJfvII/rTT2Dwg==",
           "dev": true
         },
         "acorn": {

web3.js/package.json

@@ -111,7 +111,7 @@
     "marked": "^0.6.0",
     "prettier": "^1.14.3",
     "rimraf": "2.6.3",
-    "rollup": "1.7.3",
+    "rollup": "1.7.4",
     "rollup-plugin-babel": "^4.3.2",
     "rollup-plugin-commonjs": "9.2.1",
     "rollup-plugin-json": "^3.0.0",