Bump libphonenumber from 8.12.54 to 8.12.55

Bumps [libphonenumber](https://github.com/google/libphonenumber) from 8.12.54 to 8.12.55.
- [Release notes](https://github.com/google/libphonenumber/releases)
- [Changelog](https://github.com/google/libphonenumber/blob/master/making-metadata-changes.md)
- [Commits](google/libphonenumber@v8.12.54...v8.12.55)

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

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

dependencies.gradle

@@ -86,7 +86,7 @@ ext.libs = [
                 'appdistributionApi'      : "com.google.firebase:firebase-appdistribution-api-ktx:$appDistribution",
                 'appdistribution'         : "com.google.firebase:firebase-appdistribution:$appDistribution",
                 // Phone number https://github.com/google/libphonenumber
-                'phonenumber'             : "com.googlecode.libphonenumber:libphonenumber:8.12.54"
+                'phonenumber'             : "com.googlecode.libphonenumber:libphonenumber:8.12.55"
         ],
         dagger      : [
                 'dagger'                  : "com.google.dagger:dagger:$dagger",