Swift: Bump the swift-dependencies group with 2 updates

Bumps the swift-dependencies group with 2 updates: [github.com/pointfreeco/swift-dependencies](https://github.com/pointfreeco/swift-dependencies) and [github.com/pointfreeco/swift-snapshot-testing](https://github.com/pointfreeco/swift-snapshot-testing).


Updates `github.com/pointfreeco/swift-dependencies` from 1.8.1 to 1.9.0
- [Release notes](https://github.com/pointfreeco/swift-dependencies/releases)
- [Commits](pointfreeco/swift-dependencies@1.8.1...1.9.0)

Updates `github.com/pointfreeco/swift-snapshot-testing` from 1.18.1 to 1.18.2
- [Release notes](https://github.com/pointfreeco/swift-snapshot-testing/releases)
- [Commits](pointfreeco/swift-snapshot-testing@1.18.1...1.18.2)

---
updated-dependencies:
- dependency-name: github.com/pointfreeco/swift-dependencies
  dependency-version: 1.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: swift-dependencies
- dependency-name: github.com/pointfreeco/swift-snapshot-testing
  dependency-version: 1.18.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: swift-dependencies
...

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

Author: dependabot[bot]