Update chart-releaser-action to 1.6.0 to consume the mark_as_latest param properly (#583)

Signed-off-by: Peter Zhu <zhujiaxi@amazon.com>

Author: peterzhuamazon

.github/workflows/release.yaml

@@ -28,6 +28,6 @@ jobs:
       # See https://github.com/helm/chart-releaser
       # See https://github.com/helm/chart-releaser-action
       - name: Run chart-releaser
-        uses: helm/chart-releaser-action@v1.2.1
+        uses: helm/chart-releaser-action@v1.6.0
         env:
           CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"