bump the browserslist version to silence a warning in CI (#86625)
e.g. https://github.com/vercel/next.js/runs/56663260329
```
● config-output-export › should work with getStaticPaths and fallback false
expect(received).toBeEmpty()
Expected value to be empty received:
"[baseline-browser-mapping] The data in this module is over two months old. To ensure accurate Baseline data, please update: `npm i baseline-browser-mapping@latest -D`
"
```
https://github.com/web-platform-dx/baseline-browser-mapping/issues/105 is discussing this