Image promotion for cluster-api-aws v2.8.1

Signed-off-by: Nolan Brubaker <[email protected]>

Author: nrb

registry.k8s.io/images/k8s-staging-cluster-api-aws/images.yaml

@@ -80,6 +80,7 @@
     "sha256:3dbb405221495463d2351fab91034303df35c13ea227e2d71d2e248ff7f28c2b": ["v2.6.0"]
     "sha256:085f55a684f047a8fa31811d435c5f8d0e193aebeab955234473d63f8b1d5217": ["v2.6.1"]
     "sha256:cf8c53ea9d8886ee992e1b816785c5dd848169c217b26853b106d92665a0579b": ["v2.7.1"]
+    "sha256:9606723fc070059d398202fc5264d3aff21626f083fc51bcb48b801400e36f7a": ["v2.8.1"]
 - name: cluster-api-aws-controller-amd64
   dmap:
     "sha256:0bd88bcba94f800715fca33ffc4bde430646a7c797237313cbccdcdef9f80f2d": ["v0.4.0"]