chore(deps-dev): bump rollup from 2.7.5 to 2.7.6

Bumps [rollup](https://github.com/rollup/rollup) from 2.7.5 to 2.7.6.
- [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/v2.7.5...v2.7.6)

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

web3.js/package-lock.json

@@ -19337,9 +19337,9 @@
       }
     },
     "rollup": {
-      "version": "2.7.5",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.7.5.tgz",
-      "integrity": "sha512-xQSM8uzhgtF6tTnTVEvOQThrcG3LPUP3T/4l4EukzDp0kbTY1QRDuXjiwtYzs9odKj9Bj/PccRG6viFfS7DmCQ==",
+      "version": "2.7.6",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.7.6.tgz",
+      "integrity": "sha512-AdHosxHBKyBsdtbT1/AqbWNQ87O4SSxS4N9iMwEpoCDAT6e4Du3uJSy83mp3ckgmCxly5VeXGx0WHsm21Djytg==",
       "dev": true,
       "requires": {
         "fsevents": "~2.1.2"

web3.js/package.json

@@ -120,7 +120,7 @@
     "marked": "^0.8.0",
     "prettier": "^2.0.0",
     "rimraf": "3.0.2",
-    "rollup": "2.7.5",
+    "rollup": "2.7.6",
     "rollup-plugin-babel": "^4.3.2",
     "rollup-plugin-commonjs": "^10.0.0",
     "rollup-plugin-copy": "^3.3.0",