build(deps): bump androidGradlePlugin from 8.3.2 to 8.7.3

Bumps `androidGradlePlugin` from 8.3.2 to 8.7.3.

Updates `com.android.tools.build:gradle` from 8.3.2 to 8.7.3

Updates `com.android.tools.build:gradle-api` from 8.3.2 to 8.7.3

Updates `com.android.tools.build:builder-test-api` from 8.3.2 to 8.7.3

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

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 # javalite, protoc and protobufjavautil versions should be in sync while updating and
 # it needs to match the protobuf version which grpc has transitive dependency on, which
 # needs to match the version of grpc that grpc-kotlin has a transitive dependency on.
-androidGradlePlugin = "8.3.2"
+androidGradlePlugin = "8.7.3"
 android-lint = "31.3.2"
 autovalue = "1.10.1"
 coroutines = "1.7.3"