Apigee Emulator

• Upgraded Netty to 4.1.135.Final (from 4.1.133.Final) and pinned all transitive netty-* artifacts via netty-bom. • Refreshed the Cassandra base image to pick up Go standard library 1.25.11 (from 1.25.10) in the embedded health-check binary. • Updated netty-tcnative-boringssl-static classifier variants from 2.0.53.Final to 2.0.77.Final.