Bump @skyscanner/bpk-foundations-ios from 19.3.0 to 19.4.1

Bumps [@skyscanner/bpk-foundations-ios](https://github.com/Skyscanner/backpack-foundations) from 19.3.0 to 19.4.1.
- [Release notes](https://github.com/Skyscanner/backpack-foundations/releases)
- [Commits](Skyscanner/backpack-foundations@19.3.0...19.4.1)

---
updated-dependencies:
- dependency-name: "@skyscanner/bpk-foundations-ios"
  dependency-version: 19.4.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]