Bump kustomize, run gomod.sh and add changes to support it

[methylDragon]

I need all dependencies (including transitive ones) to use k8s.io/client-go v0.27+

The old version of kustomize/api uses v0.20.4:
https://github.com/kubernetes-sigs/kustomize/blob/api/v0.13.4/cmd/depprobcheck/go.mod#L57

Bumping it makes it use v0.27.0:
https://github.com/kubernetes-sigs/kustomize/blob/api/v0.15.0/cmd/depprobcheck/go.mod#L59

I really really hope this is the last one

I also realize I didn't run gomod.sh in the previous PR. So I ran it here.

[methylDragon]

@ensonic note I had to change the sources to support the bumps.
Some dependencies had type/signature changes.

d80717a

[methylDragon]

Pre-emptive postsubmit run: https://github.com/googlecloudrobotics/core/actions/runs/7046754782/job/19179184047

FAILED. :(

Step #1: --- FAIL: TestKubernetesRobotClusterStatus (0.00s)
Step #1:     k8s_integration_test.go:219: Robot cluster robco-integration-test-robot: Creating the kubernetes client set failed: The gcp auth plugin has been removed.
Step #1:         Please use the "gke-gcloud-auth-plugin" kubectl/client-go credential plugin instead.
Step #1:         See https://cloud.google.com/blog/products/containers-kubernetes/kubectl-auth-changes-in-gke for further details
Step #1: FAIL
Step #1: FAIL: //src/go/tests:go_default_test (see /builder/home/.cache/bazel/_bazel_builder/eab0d61a99b6696edb3d2aff87b585e8/execroot/cloud_robotics/bazel-out/k8-fastbuild/testlogs/src/go/tests/go_default_test/test.log)
Step #1: [2,478 / 2,480] 1 / 2 tests, 1 failed; Testing //src/go/tests:go_default_test; 1s local

Not merging yet

[methylDragon]

Trying postsubmit again:

Seems the client-go bump led to some auth deprecations.

[vivekbagade]

@ensonic This looks good to me, but I don't want to unilaterally approve it since this is a bit invasive

[methylDragon]

@ensonic please pay special attention to: https://github.com/googlecloudrobotics/core/pull/266/files#diff-3286564e7e043d6e73c09671c2a1a0c5d6fa6873ed217491774e2339cf8a062bR14-R23

Latest relevant postsubmit manual run passes: https://github.com/googlecloudrobotics/core/actions/runs/7053793632

[ensonic]

Let's go with this for now :/