refactor helm ci tests part I (#11178)

* refactor helm ci tests part I

Signed-off-by: cpanato <ctadeu@gmail.com>

* update indentation

Signed-off-by: cpanato <ctadeu@gmail.com>

* fix path

Signed-off-by: cpanato <ctadeu@gmail.com>

* more updates

Signed-off-by: cpanato <ctadeu@gmail.com>

* add helm-lint job

Signed-off-by: cpanato <ctadeu@gmail.com>

---------

Signed-off-by: cpanato <ctadeu@gmail.com>

hack/verify-chart-lint.sh

@@ -1,22 +0,0 @@
-#!/bin/bash
-
-# Copyright 2020 The Kubernetes Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -o errexit
-set -o nounset
-set -o pipefail
-
-KUBE_ROOT="$( cd "$(dirname "$0")../" >/dev/null 2>&1 ; pwd -P )"
-ct lint --charts ${KUBE_ROOT}/charts/ingress-nginx --validate-maintainers=false