build(deps): bump android-gradle-plugin

Bumps `android-gradle-plugin` from 8.6.0-alpha08 to 8.7.0-alpha03.

Updates `com.android.tools.build:gradle` from 8.6.0-alpha08 to 8.7.0-alpha03

Updates `com.android.library` from 8.6.0-alpha08 to 8.7.0-alpha03

Updates `com.android.lint` from 8.6.0-alpha08 to 8.7.0-alpha03

---
updated-dependencies:
- dependency-name: com.android.tools.build:gradle
  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
- dependency-name: com.android.lint
  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

@@ -99,7 +99,7 @@ androidBuildTools = "35.0.0"
 # https://mvnrepository.com/artifact/com.android.tools.build/gradle?repo=google
 # https://maven.google.com/web/index.html#com.android.tools.build:gradle
 # WARNING: Remember to update the version badge in `README.md`!
-android-gradle-plugin = "8.6.0-alpha08"
+android-gradle-plugin = "8.7.0-alpha03"
 
 # endregion