Bump github.com/apple/swift-http-types from 1.3.1 to 1.4.0 (#4)

Bumps [github.com/apple/swift-http-types](https://github.com/apple/swift-http-types) from 1.3.1 to 1.4.0.
- [Release notes](https://github.com/apple/swift-http-types/releases)
- [Commits](apple/swift-http-types@1.3.1...1.4.0)

---
updated-dependencies:
- dependency-name: github.com/apple/swift-http-types
  dependency-version: 1.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]