Amazon ECS Agent - v1.102.2

• Enhancement - Update SSM exec agent version to 3.3.4108.0 #4912
• Enhancement - Update Go version to 1.25.8 #4894
• Enhancement - Apply skip-gpg-check to both ecs-init and ssm agent #4901
• Enhancement - Bump google.golang.org/grpc from 1.78.0 to 1.79.3 #4906