Bump gradlePlugin from 8.6.0 to 8.8.0

Bumps `gradlePlugin` from 8.6.0 to 8.8.0.

Updates `com.android.application` from 8.6.0 to 8.8.0

Updates `com.android.library` from 8.6.0 to 8.8.0

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

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

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ jvmTarget = "21"
 kotlin = "2.1.0"
 # should match kotlin https://github.com/google/ksp/releases
 ksp = "2.1.0-1.0.29"
-gradlePlugin = "8.7.3"
+gradlePlugin = "8.8.0"
 googleServices = "4.4.2"
 crashlyticsPlugin = "3.0.2"
 firebaseBOM = "33.2.0"