chore: bump rollup from 4.19.0 to 4.52.3 in /examples/custom-ethers-pkg

Bumps [rollup](https://github.com/rollup/rollup) from 4.19.0 to 4.52.3.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v4.19.0...v4.52.3)

---
updated-dependencies:
- dependency-name: rollup
  dependency-version: 4.52.3
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

examples/custom-ethers-pkg/package.json

@@ -23,7 +23,7 @@
     "@rollup/plugin-typescript": "^11.1.6",
     "@types/node": "^20.12.13",
     "builtin-modules": "^4.0.0",
-    "rollup": "^4.18.0",
+    "rollup": "^4.52.3",
     "tslib": "^2.6.3",
     "typescript": "^5.4.5"
   }