chore(deps): update helm/chart-testing-action action from v2.7.0 to v2.8.0 (.github/workflows/test-helm-chart.yml) (DefectDojo#13629)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/test-helm-chart.yml

@@ -32,7 +32,7 @@ jobs:
              helm dependency update ./helm/defectdojo
 
       - name: Set up chart-testing
-        uses: helm/chart-testing-action@0d28d3144d3a25ea2cc349d6e59901c4ff469b3b # v2.7.0
+        uses: helm/chart-testing-action@6ec842c01de15ebb84c8627d2744a0c2f2755c9f # v2.8.0
         with:
           yamale_version: 6.0.0 # renovate: datasource=pypi depName=yamale versioning=semver
           yamllint_version: 1.37.1 # renovate: datasource=pypi depName=yamllint versioning=semver