feat: add a chart to deploy the music notifications app #6

	name: Lint and Test Charts

	# yamllint disable-line rule:truthy
	on:
	workflow_call:
	workflow_dispatch:
	pull_request:
	paths:
	- 'charts/**'

	jobs:
	lint-test:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up Helm
	uses: azure/setup-helm@v4
	with:
	version: v3.13.1

	- uses: actions/setup-python@v5
	with:
	python-version: 3.x
	check-latest: true

	- name: Set up chart-testing
	uses: helm/chart-testing-action@v2
	with:
	version: 3.11.0

	- name: Run chart-testing (list-changed)
	id: list-changed
	run: \|
	changed=$(ct list-changed --config .github/linters/ct.yaml)
	if [[ -n "$changed" ]]; then
	echo "changed=true" >> "$GITHUB_OUTPUT"
	fi

	- name: Run chart-testing (lint)
	run: ct lint --config .github/linters/ct.yaml

	- name: Create kind cluster
	uses: helm/kind-action@v1
	if: steps.list-changed.outputs.changed == 'true'

	- name: Run chart-testing (install)
	run: ct install --config .github/linters/ct.yaml

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