build(deps): bump agp from 8.7.2 to 8.7.3

Bumps `agp` from 8.7.2 to 8.7.3.

Updates `com.android.application` from 8.7.2 to 8.7.3

Updates `com.android.library` from 8.7.2 to 8.7.3

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

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

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-agp = "8.7.2"
+agp = "8.7.3"
 kotlin = "2.1.0"
 ksp = "2.1.0-1.0.29"
 spotless = "6.25.0"