chore(deps): update helm/chart-testing-action action to v2.8.0 (#282)

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

Author: renovate[bot]

.github/workflows/chart-lint.yml

@@ -43,7 +43,7 @@ jobs:
           python-version: "3.x"
           check-latest: true
       - name: Set up chart-testing
-        uses: helm/chart-testing-action@v2.6.1
+        uses: helm/chart-testing-action@v2.8.0
       - name: Lint chart
         run: ct lint --target-branch ${TARGET_BRANCH} --lint-conf lintconf.yaml --config ct.yaml --chart-yaml-schema chart_schema.yaml
 

.github/workflows/chart-test.yml

@@ -54,7 +54,7 @@ jobs:
         with:
           python-version: "3.x"
           check-latest: true
-      - uses: helm/chart-testing-action@v2.6.1
+      - uses: helm/chart-testing-action@v2.8.0
       - name: Set up Kind cluster
         uses: helm/kind-action@v1
         with: