Bump com.googlecode.libphonenumber:libphonenumber from 9.0.20 to 9.0.21 (#2140)

Bumps [com.googlecode.libphonenumber:libphonenumber](https://github.com/google/libphonenumber) from 9.0.20 to 9.0.21.
- [Release notes](https://github.com/google/libphonenumber/releases)
- [Changelog](https://github.com/google/libphonenumber/blob/master/release_notes.txt)
- [Commits](google/libphonenumber@v9.0.20...v9.0.21)

---
updated-dependencies:
- dependency-name: com.googlecode.libphonenumber:libphonenumber
  dependency-version: 9.0.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -31,7 +31,7 @@ kotlinx-coroutines = "1.10.2"
 kotlinxSerializationJson = "1.9.0"
 # see https://github.com/google/ksp/releases for version numbers
 ksp = "2.3.4"
-libphonenumber = "9.0.20"
+libphonenumber = "9.0.21"
 mapsCompose = "6.12.2"
 mikepenz-aboutLibraries = "13.1.0"
 mikepenz-markdown = "0.38.1"