chore(deps): bump serve-static and @gouvfr/dsfr

Bumps [serve-static](https://github.com/expressjs/serve-static) to 1.16.2 and updates ancestor dependency [@gouvfr/dsfr](https://github.com/GouvernementFR/dsfr). These dependencies need to be updated together.


Updates `serve-static` from 1.13.2 to 1.16.2
- [Release notes](https://github.com/expressjs/serve-static/releases)
- [Changelog](https://github.com/expressjs/serve-static/blob/v1.16.2/HISTORY.md)
- [Commits](expressjs/serve-static@v1.13.2...v1.16.2)

Updates `@gouvfr/dsfr` from 1.12.1 to 1.13.0
- [Release notes](https://github.com/GouvernementFR/dsfr/releases)
- [Changelog](https://github.com/GouvernementFR/dsfr/blob/main/CHANGELOG.md)
- [Commits](GouvernementFR/dsfr@v1.12.1...v1.13.0)

---
updated-dependencies:
- dependency-name: serve-static
  dependency-type: indirect
- dependency-name: "@gouvfr/dsfr"
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>