build(deps): bump golang from 1.21.1-bullseye to 1.21.4-bullseye in /examples/shared/golang#521

dependabot[bot] wants to merge 1 commit intomainRyanTheOptimist/envoy:mainfrom

dependabot/docker/examples/shared/golang/golang-1.21.4-bullseyeRyanTheOptimist/envoy:dependabot/docker/examples/shared/golang/golang-1.21.4-bullseyeCopy head branch name to clipboard