Static manifest generation uses kustomize instead of python (#8099)

* regenerate at 4.0.12

* bash for loop and static values files

* add .tool-versions

* fixup static manifests with kustomize instead of python

* remove spec.replicas where set

* generate manifests for all supported versions

* update docs

* remove all versions except default (1.20) for now

* update to 1.1.1/4.0.15

hack/manifest-templates/static-kustomization-template.yaml

@@ -0,0 +1,11 @@
+# NOTE: kustomize is not supported. This file exists only to be able to reference it from bases.
+# https://kubectl.docs.kubernetes.io/references/kustomize/bases/
+#
+# ```
+# namespace: ingress-nginx
+# bases:
+#   - github.com/kubernetes/ingress-nginx/deploy/static/{TARGET}?ref=master
+# ```
+
+resources:
+  - deploy.yaml