Rework helm release process

This was mostly me working around a limitation in chart-releaser where it does not allow for uploading a chart to an existing release.

.github/workflows/promote.yaml

@@ -8,6 +8,8 @@ jobs:
   promote:
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/checkout@v2
+
       - name: Log in to GHCR
         run: |
           echo ${{ secrets.GITHUB_TOKEN }} | docker login ghcr.io -u ${{ github.actor }} --password-stdin
@@ -23,3 +25,16 @@ jobs:
           docker tag ghcr.io/${{ github.repository }}:${{ github.event.release.tag_name }} quay.io/${{ github.repository }}:latest
           docker push quay.io/${{ github.repository }}:${{ github.event.release.tag_name }}
           docker push quay.io/${{ github.repository }}:latest
+
+      - name: Configure git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
+
+      - name: Release Helm chart
+        run: |
+          ansible-playbook ansible/helm-release.yml -v \
+            -e operator_image=quay.io/${{ github.repository }} \
+            -e chart_owner=${{ github.repository_owner }} \
+            -e tag=${{ github.event.release.tag_name }} \
+            -e gh_token=${{ secrets.GITHUB_TOKEN }}