chore(deps): bump helm/chart-testing-action from 2.7.0 to 2.8.0 (#2426)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/lint-test.yaml

@@ -34,7 +34,7 @@ jobs:
           git clean -df .
 
       - name: Set up chart-testing
-        uses: helm/chart-testing-action@v2.7.0
+        uses: helm/chart-testing-action@v2.8.0
 
       - name: Expand templates for CI
         run: |