chore(deps): update ack-chart docker tag to v46.68.0

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gitops/argocd/charts/krm/ack/Chart.yaml

@@ -10,4 +10,4 @@ appVersion: 1.0.0
 dependencies:
 - name: ack-chart
   repository: oci://public.ecr.aws/aws-controllers-k8s
-  version: 46.46.0
+  version: 46.68.0