fix(infra): Update chart releaser (#5434)

Author: justin-tahara

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

@@ -27,6 +27,7 @@ jobs:
         run: |
           helm repo add bitnami https://charts.bitnami.com/bitnami
           helm repo add onyx-vespa https://onyx-dot-app.github.io/vespa-helm-charts
+          helm repo add keda https://kedacore.github.io/charts
           helm repo update
 
       - name: Build chart dependencies
@@ -46,4 +47,4 @@ jobs:
           charts_dir: deployment/helm/charts
           branch: gh-pages
           commit_username: ${{ github.actor }}
-          commit_email: ${{ github.actor }}@users.noreply.github.com
+          commit_email: ${{ github.actor }}@users.noreply.github.com