project-infra: replace bazel with go in all the places

[dhiller]

kubernetes-sigs/prow and k8s/test-infra have moved away from using bazel a while ago.

This creates several problems for us:

• we are currently not able to update the k8s prow and test-infra dependencies, so we can't fix our automation
• we can't fix custom dependabot issues
• we haven't kept up with the bazel versions

Therefore our goal is to replace all bazel based actions with pure go, or use other tools, i.e. kustomize for deployments.

In short we have the following acceptance criteria:

• no bazel(isk)? calls
  • to delete: bazel deps upload for project-infra
  • **/Makefile: replace bazel calls
  • to replace: calls in job definitions
• no bazel related files in the repository
  • to delete: WORKSPACE, go_third_party.bzl
  • to delete: **/BUILD.bazel

We need to touch several areas:

• move from bazel deps into vendoring
• some component deployment tests are based on k8s bazel stuff - we need to remove them after having created follow ups to do this with std k8s stuff
• some of the image builds are done with bazel
• the dependabot needs to be moved to the default one
• we need to update the jobs that run robots with bazel

Action items:

• dependency management
  • use go vendoring for dependencies #3522
• images
  • create Containerfiles for pushing images #3851
  • test-label-analyzer: replace ginkgo cli call with stdout #3866
• deployments:
  • ci-search: use kubectl kustomize for deployment #3845
  • grafana: convert to kustomize based deployment #3852
• prowjobs
  • project-infra,periodics: execute jobs with go #3846
  • uploader,feature-announce,support-matrix: run jobs with go #3842
• clean up
  • remove bazel based jobs that are not needed any more
  • remove bazel

[dhiller]

/assign