Bump lint actions helm, python to make it work again

Author: haad

.github/workflows/lint-test.yaml

@@ -14,14 +14,14 @@ jobs:
       - name: Set up Helm
         uses: azure/setup-helm@v4
         with:
-          version: v3.4.0
+          version: v3.19.0
 
       - uses: actions/setup-python@v6
         with:
-          python-version: 3.7
+          python-version: 3.12
 
       - name: Set up chart-testing
-        uses: helm/chart-testing-action@v2.7.0
+        uses: helm/chart-testing-action@v2.8
 
       - name: Run chart-testing (list-changed)
         id: list-changed