fix lint test

Author: adityachoudhari26

.github/workflows/lint-test.yaml

@@ -26,6 +26,9 @@ jobs:
       - name: Set up chart-testing
         uses: helm/chart-testing-action@v2.6.1
 
+      - name: Install wandb chart repository
+        run: helm repo add wandb https://charts.wandb.ai
+
       - name: Run chart-testing (list-changed)
         id: list-changed
         run: |