Merge pull request #6790 from willie-yao/cluster-api-azure-v1.15.0-image-promotion

Image promotion for cluster-api-azure v1.15.0

Author: k8s-ci-robot

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

@@ -66,6 +66,7 @@
     "sha256:59f2d3e9f8d93b3dae7624863c4067eaec61285cda35eefef0b586dac5c3bddb": ["v1.14.2"]
     "sha256:416be0afb8380a53de459599da7ac6a98be59c82bf4bcaa71d19bb1f026ff31f": ["v1.14.3"]
     "sha256:1125c8c0dc69065df516f54b5cf65a278c4acea56d9101bdb81125bc935a5931": ["v1.14.4"]
+    "sha256:260579cce274f3379c55547b915df848ba1c02f9a6ed088fda325e6bede0a916": ["v1.15.0"]
     "sha256:bc87b3fe3b0ecf0ced524d4428cd75da22fea5f6b97f5b6ff5f5a03011c6f756": ["v1.2.0"]
     "sha256:d15b0a528bd0f9c05ba71d169c393add40c529a15f6b5c629c6f0936fcb239c9": ["v1.2.1"]
     "sha256:ae274d73d389ef2832f6d8d113205c78644523a4528faac1cd2a3437ff38180e": ["v1.3.0"]