This might include moving to gitlab + moving to helmfile.
If the component is going to take considerable work, I'll open a subtask for it.
Components:
[x] builds-api
[x] builds-admission - https://gitlab.wikimedia.org/repos/cloud/toolforge/builds-admission/-/merge_requests/3
[] builds-builder (buildservice repo)
[x] cert-manager - https://gitlab.wikimedia.org/repos/cloud/toolforge/cert-manager/-/merge_requests/3
[x] envvars-api
[x] envvars-admission
[x] api-gateway - https://gitlab.wikimedia.org/repos/cloud/toolforge/api-gateway/-/merge_requests/13
[x] volume-admission
[x] jobs-framework-api
[x] jobs-framework-emailer -- https://gitlab.wikimedia.org/repos/cloud/toolforge/jobs-framework-emailer/-/merge_requests/4 https://gitlab.wikimedia.org/repos/cloud/toolforge/toolforge-deploy/-/merge_requests/64
[x] image-config - https://gitlab.wikimedia.org/repos/cloud/toolforge/toolforge-deploy/-/merge_requests/51
[x] ingress-nginx - https://gitlab.wikimedia.org/repos/cloud/toolforge/toolforge-deploy/-/merge_requests/52, https://gitlab.wikimedia.org/repos/cloud/toolforge/ingress-nginx/-/merge_requests/6=
[] ingress-admission-controller (https://gerrit.wikimedia.org/r/admin/repos/cloud/toolforge/ingress-admission-controller)
[x] kubernetes-metrics - https://gitlab.wikimedia.org/repos/cloud/toolforge/wmcs-k8s-metrics/-/merge_requests/3 - https://gitlab.wikimedia.org/repos/cloud/toolforge/toolforge-deploy/-/merge_requests/53
[x] calico - https://gitlab.wikimedia.org/repos/cloud/toolforge/calico/-/merge_requests/5 - https://gitlab.wikimedia.org/repos/cloud/toolforge/toolforge-deploy/-/merge_requests/54
[] maintain-kubeusers (https://gerrit.wikimedia.org/r/admin/repos/labs/tools/maintain-kubeusers)
[x] registry-admission (https://gerrit.wikimedia.org/r/admin/repos/labs/tools/registry-admission-webhook) https://gitlab.wikimedia.org/repos/cloud/toolforge/registry-admission/-/merge_requests/1 - https://gitlab.wikimedia.org/repos/cloud/toolforge/toolforge-deploy/-/merge_requests/68
[x] ingress-admission (https://gerrit.wikimedia.org/r/admin/repos/cloud/toolforge/ingress-admission-controller) https://gitlab.wikimedia.org/repos/cloud/toolforge/ingress-admission/-/merge_requests/1 - https://gitlab.wikimedia.org/repos/cloud/toolforge/toolforge-deploy/-/merge_requests/57
[x] delete-crashing-pods (https://gerrit.wikimedia.org/r/admin/repos/cloud/toolforge/delete-crashing-pods), does not need migration (see T334399)
[] refresh docs at https://wikitech.wikimedia.org/wiki/Portal:Toolforge/Admin/Kubernetes/Custom_components
[] extra, think again about {T328539}