javier-b-perez: Automated cherry pick of #83924: release: lib: revert docker_registry to constant k8s.gcr.io

JobBuild
83962
10-15 17:18		 99baae2e
10-15 17:16
pull-kubernetes-bazel-build 1184793398855340036 1184640510359244800 1184529032780189699 1184156164150005761
pull-kubernetes-bazel-test 1184793398855340037 1184640510363439105 1184529032780189698 1184156164137422849
pull-kubernetes-cross 1184793398851145730 1184640510359244803 1184529032801161217 1184156164124839936
pull-kubernetes-dependencies 1184793398855340033 1184640510359244802 1184529032780189696 1184156164154200064
pull-kubernetes-e2e-gce 1184793398855340035 1184626293677756416 1184586652727644161 1184529032780189697 1184207766940553217 1184156164154200065
pull-kubernetes-e2e-gce-device-plugin-gpu 1184156164166782976
pull-kubernetes-e2e-gce-rbe 1184771510057832453 1184713370457083905 1184586652727644160 1184207766940553216 1184156164166782978
pull-kubernetes-integration 1184793398855340032 1184640510363439104 1184529032805355522 1184156164150005762
pull-kubernetes-kubemark-e2e-gce-big 1184771510099775488 1184713370457083904 1184651581656666112 1184533063586025472 1184207766965719040 1184156164150005760
pull-kubernetes-node-e2e 1184793398851145728 1184640510355050496 1184529032801161216 1184207766953136128 1184156164137422848
pull-kubernetes-typecheck 1184793398855340034 1184640510359244801 1184529032805355521 1184156164166782979
pull-kubernetes-verify 1184793398851145729 1184640510359244804 1184529032805355520 1184156164166782977