chore(docs): bump dpop from 1.4.1 to 2.1.1 in /web-app

Bumps [dpop](https://github.com/panva/dpop) from 1.4.1 to 2.1.1.
- [Release notes](https://github.com/panva/dpop/releases)
- [Changelog](https://github.com/panva/dpop/blob/main/CHANGELOG.md)
- [Commits](panva/dpop@v1.4.1...v2.1.1)

---
updated-dependencies:
- dependency-name: dpop
  dependency-version: 2.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]