v0.6.0

Added:

• net/trace: Add jaeger reporter
• cache/redis: Add redis database configuration
• grpc/warden: Update gRPC version to v1.29.1

Fixed:

• container/pool: Fixed config reload deadlock
• naming/discovery: Fixed empty instances panic
• tool/kratos: Fixed new template errors
• net/trace: Fixed trace pending count
• grpc/warden: Fixed gRPC validation return code