Avoid running chart version increment validation when it's not required (#8935)

.github/ct-lint.yaml

@@ -2,7 +2,6 @@ chart-dirs:
   - bitnami
 chart-repos:
   - bitnami=https://charts.bitnami.com/bitnami
-check-version-increment: true
 debug: true
 remote: origin
 validate-chart-schema: true

.github/workflows/lint-test.yaml

@@ -15,8 +15,19 @@ jobs:
       - name: Set up chart-testing
         uses: helm/chart-testing-action@v2.1.0
 
+      - name: Get list of files with changes in Pull Request
+        id: pr-file-changes
+        uses: trilom/file-changes-action@v1.2.4
+        with:
+          fileOutput: ' '
+
       - name: Run chart-testing (lint)
-        run: ct lint --config .github/ct-lint.yaml
+        run: |
+          if grep -q 'templates\|crds\|Chart.yaml\|values.yaml' $HOME/files.txt; then
+            ct lint --config .github/ct-lint.yaml --check-version-increment
+          else
+            ct lint --config .github/ct-lint.yaml
+          fi
 
   test:
     runs-on: ubuntu-latest