Bump com.android.tools.build:gradle from 8.3.0-alpha16 to 8.4.0-alpha04

Bumps com.android.tools.build:gradle from 8.3.0-alpha16 to 8.4.0-alpha04.

---
updated-dependencies:
- dependency-name: com.android.tools.build:gradle
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -20,7 +20,7 @@ firebase-messaging-ktx = "23.3.1"
 flagkit-android = "1.0.2"
 fragment-ktx = "1.7.0-alpha07"
 googleServices = "4.4.0"
-gradle = "8.3.0-alpha16"
+gradle = "8.4.0-alpha04"
 gson = "2.10.1"
 insetter = "0.6.1"
 junit = "4.13.2"