Migrate Dockerfile to use golang 1.21 to match go.mod in project#1857

Merged

k8s-ci-robot merged 1 commit intokubernetes-sigs:mainfrom

elastx:dockerfile-go-1.21

Feb 2, 2024

Commits on Feb 2, 2024

Migrate Dockerfile to use golang 1.21 to match go.mod in project
huxcrux
committed