Update Gradle Enterprise plugin for Gradle 9/JDK 21 CI

[Copilot]

The Build JDK21 ubuntu-latest GitHub Actions job was failing during Gradle task creation in the gradle-plugins build. The failure came from an outdated com.gradle.enterprise plugin that is incompatible with the Gradle 9/JDK 21 CI environment.

• Root cause

  • CI failed while creating :gradle-plugins:biz.aQute.bnd.gradle:test.
  • The pinned com.gradle.enterprise version (3.13.4) references an internal test-acceleration API that is no longer present in the Gradle 9 setup used by GitHub Actions.

• Change

  • Bump com.gradle.enterprise from 3.13.4 to 3.19.2 in both settings files:
    • settings.gradle
    • gradle-plugins/settings.gradle.kts

• Scope

  • No build logic changes.
  • No task configuration changes.
  • Only the shared plugin version pin was updated to restore compatibility in CI.

pluginManagement {
	plugins {
		id("com.gradle.enterprise") version("3.19.2")
	}
}