chore: bump rollup from 2.50.6 to 2.51.0 in /web3.js (#17820)

Bumps [rollup](https://github.com/rollup/rollup) from 2.50.6 to 2.51.0.
- [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/v2.50.6...v2.51.0)

---
updated-dependencies:
- dependency-name: rollup
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

web3.js/package.json

@@ -127,7 +127,7 @@
     "nyc": "^15.1.0",
     "prettier": "^2.3.0",
     "rimraf": "3.0.2",
-    "rollup": "2.50.6",
+    "rollup": "2.51.0",
     "rollup-plugin-dts": "^3.0.1",
     "rollup-plugin-node-polyfills": "^0.2.1",
     "rollup-plugin-terser": "^7.0.2",