build(deps): bump com.mixpanel.android:mixpanel-android

Bumps [com.mixpanel.android:mixpanel-android](https://github.com/mixpanel/mixpanel-android) from 8.7.0 to 8.9.0.
- [Release notes](https://github.com/mixpanel/mixpanel-android/releases)
- [Commits](mixpanel/mixpanel-android@v8.7.0...v8.9.0)

---
updated-dependencies:
- dependency-name: com.mixpanel.android:mixpanel-android
  dependency-version: 8.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -79,7 +79,7 @@ turbine = "1.2.1"
 robolectric = "4.16.1"
 slf4j-simple = "2.0.18"
 androidxUiJUnit = "1.11.4"
-mixpanel = "8.7.0"
+mixpanel = "8.9.0"
 
 timber = "5.0.1"