Image promotion for capi-vsphere v1.9.4

Signed-off-by: Christian Schlotter <[email protected]>

Author: chrischdi

registry.k8s.io/images/k8s-staging-capi-vsphere/images.yaml

@@ -57,3 +57,4 @@
     "sha256:6665b7d42977e7cc389ad23f94a94afa2681e3dea176d9fcc7303e463873eb6a": ["v1.9.1"]
     "sha256:7b81f3af33901e691909b00ae0b7c3fff35209e55649bb3ab53b9e55a47d8655": ["v1.9.2"]
     "sha256:68c16c50a35d9de1df6f0a4e8ac6bf43419b31069ffb02f7c0b2ce92cb73ce2e": ["v1.9.3"]
+    "sha256:e2f9de5003530524239fafd3b667880f862ea597a37f2a4e9756459693497963": ["v1.9.4"]