fix chart releaser

- update
- do not mark chart release as latest
- do not error out when release already exists (such as when running on master)

.github/workflows/charts.yaml

@@ -26,6 +26,9 @@ jobs:
           version: v3.4.0
 
       - name: Run chart-releaser
-        uses: helm/chart-releaser-action@v1.2.0
+        uses: helm/chart-releaser-action@v1.6.0
+        with:
+          mark_as_latest: false
+          skip_existing: true
         env:
-          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"