fix: extract correct verson for tag

.github/workflows/helm-build.yml

@@ -36,10 +36,16 @@ jobs:
           MTR: mtr.devops.telekom.de
           REPO: caas
 
+      - name: Extract Chart Version
+        id: chart_version
+        run: |
+          version=$(yq e '.version' ./chart/Chart.yaml)
+          echo "::set-output name=version::$version"
+
       - name: Dispatch Event to Helm-Charts Repo
         uses: peter-evans/repository-dispatch@v3
         with:
           token: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
           repository: caas-team/helm-charts
           event-type: new-helm-chart-version
-          client-payload: '{"tag": "${{ github.ref_name }}"}'
+          client-payload: '{"chart": "py-kube-downscaler", "version": "${{ steps.chart_version.outputs.version }}"}'