Update losisin/helm-values-schema-json-action digest from v3.0.1 to v3 (.github/workflows/test-helm-chart.yml) (#15021)

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

Author: renovate[bot]

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

@@ -155,7 +155,7 @@ jobs:
         uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Generate values schema json
-        uses: losisin/helm-values-schema-json-action@39cdf80504f6c95ad3c4f317e2135e2509ea56bb # v3
+        uses: losisin/helm-values-schema-json-action@cfefdf4241da6dbe17f3378e3cd0e863d4a4c3c8 # v3
         with:
           fail-on-diff: true
           working-directory: "helm/defectdojo"