Bump com.googlecode.libphonenumber:libphonenumber (#296)

Bumps [com.googlecode.libphonenumber:libphonenumber](https://github.com/google/libphonenumber) from 8.13.27 to 8.13.28.
- [Release notes](https://github.com/google/libphonenumber/releases)
- [Changelog](https://github.com/google/libphonenumber/blob/master/making-metadata-changes.md)
- [Commits](google/libphonenumber@v8.13.27...v8.13.28)

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

app/build.gradle

@@ -47,7 +47,7 @@ dependencies {
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
     implementation 'com.google.android.material:material:1.11.0'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
-    implementation 'com.googlecode.libphonenumber:libphonenumber:8.13.27'
+    implementation 'com.googlecode.libphonenumber:libphonenumber:8.13.28'
     implementation project(path: ':securesmsproxyapi')
     testImplementation "org.junit.jupiter:junit-jupiter-api:5.10.1"
     testImplementation "org.junit.jupiter:junit-jupiter-params:5.10.1"