Bump the npm_and_yarn group across 2 directories with 2 updates

Bumps the npm_and_yarn group with 1 update in the /clients/fides-js directory: [rollup](https://github.com/rollup/rollup).
Bumps the npm_and_yarn group with 1 update in the /clients/privacy-center directory: [next](https://github.com/vercel/next.js).


Updates `rollup` from 4.53.5 to 4.60.4
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v4.53.5...v4.60.4)

Updates `next` from 15.5.15 to 15.5.18
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.5.15...v15.5.18)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.5.18
  dependency-type: direct:production
- dependency-name: rollup
  dependency-version: 4.60.3
  dependency-type: direct:development
...

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

Author: dependabot[bot]

clients/fides-js/package.json

@@ -89,7 +89,7 @@
     "jest-environment-jsdom": "^29.7.0",
     "postcss": "^8.4.31",
     "prettier": "^3.8.3",
-    "rollup": "~4.53.2",
+    "rollup": "~4.60.4",
     "rollup-plugin-copy": "^3.4.0",
     "rollup-plugin-dts": "^6.1.1",
     "rollup-plugin-esbuild": "^6.1.1",

clients/privacy-center/package.json

@@ -46,7 +46,7 @@
     "framer-motion": "^12.23.24",
     "headers-polyfill": "^4.0.3",
     "immer": "^9.0.21",
-    "next": "15.5.15",
+    "next": "15.5.18",
     "next-swagger-doc": "^0.4.0",
     "p-retry": "^6.2.1",
     "pino": "^9.7.0",