[BRE-1232] Splitting up linting and removing list changed check (#363)

Author: pixman20

.github/workflows/_lint_chart.yml

@@ -0,0 +1,42 @@
+name: Lint Chart (Common)
+
+on:
+  workflow_call:
+    inputs:
+      chart_name:
+        description: 'Name of the chart to lint'
+        required: true
+        type: string
+
+permissions:
+  contents: read
+
+env:
+  _CHART_PATH: charts/${{ inputs.chart_name }}
+
+jobs:
+  lint:
+    name: Lint Helm chart
+    runs-on: ubuntu-24.04
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+
+      - name: Set up Helm
+        uses: Azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4.3.1
+        with:
+          version: 'v3.19.0'
+
+      - name: Set up chart-testing
+        uses: helm/chart-testing-action@0d28d3144d3a25ea2cc349d6e59901c4ff469b3b # v2.7.0
+
+      - name: Run chart-testing (lint)
+        env:
+          CT_CHECK_VERSION_INCREMENT: false
+          _DEFAULT_BRANCH: ${{ github.event.repository.default_branch }}
+        run: ct lint --charts "$_CHART_PATH"

.github/workflows/lint-self-host.yml

@@ -0,0 +1,24 @@
+name: Lint self-host
+
+on:
+  pull_request:
+    paths:
+      - "charts/self-host/**"
+      - ".github/workflows/lint-self-host.yml"
+      - ".github/workflows/_lint_chart.yml"
+  push:
+    branches:
+      - main
+    paths:
+      - "charts/self-host/**"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  lint-self-host:
+    name: Lint self-host chart
+    uses: ./.github/workflows/_lint_chart.yml
+    with:
+      chart_name: self-host

.github/workflows/lint-sm-operator.yml

@@ -0,0 +1,24 @@
+name: Lint sm-operator
+
+on:
+  pull_request:
+    paths:
+      - "charts/sm-operator/**"
+      - ".github/workflows/lint-sm-operator.yml"
+      - ".github/workflows/_lint_chart.yml"
+  push:
+    branches:
+      - main
+    paths:
+      - "charts/sm-operator/**"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  lint-sm-operator:
+    name: Lint sm-operator chart
+    uses: ./.github/workflows/_lint_chart.yml
+    with:
+      chart_name: sm-operator