Bump io.sentry.android.gradle from 6.8.1 to 6.9.0 (#22915)

Bumps [io.sentry.android.gradle](https://github.com/getsentry/sentry-android-gradle-plugin) from 6.8.1 to 6.9.0.
- [Release notes](https://github.com/getsentry/sentry-android-gradle-plugin/releases)
- [Changelog](https://github.com/getsentry/sentry-android-gradle-plugin/blob/main/CHANGELOG.md)
- [Commits](getsentry/sentry-android-gradle-plugin@6.8.1...6.9.0)

---
updated-dependencies:
- dependency-name: io.sentry.android.gradle
  dependency-version: 6.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -92,7 +92,7 @@ mockito-kotlin = '6.3.0'
 mpandroidchart = 'v3.1.0'
 photoview = '2.3.0'
 robolectric = '4.16.1'
-sentry = '6.8.1'
+sentry = '6.9.0'
 squareup-java-poet = '1.13.0'
 squareup-kotlin-poet = '2.3.0'
 squareup-okhttp3 = '5.3.2'