[dependabot]: Bump com.android.tools.build:gradle

Bumps com.android.tools.build:gradle from 8.5.0 to 8.9.1.

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

packages/local_auth/local_auth_android/android/build.gradle

@@ -8,7 +8,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.5.0'
+        classpath 'com.android.tools.build:gradle:8.9.1'
     }
 }