Bump agp from 8.6.1 to 8.9.0

Bumps `agp` from 8.6.1 to 8.9.0.

Updates `com.android.library` from 8.6.1 to 8.9.0

Updates `com.android.application` from 8.6.1 to 8.9.0

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

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-agp = "8.6.1"
+agp = "8.9.0"
 kotlin = "2.1.10"
 coreKtx = "1.13.1"
 junit = "4.13.2"