Auto-generated changes for Windows GMSA support

This patch comprises the auto-generated changes for the API changes outlined in
the Windows GMSA KEP
(https://github.com/kubernetes/enhancements/blob/master/keps/sig-windows/20181221-windows-group-managed-service-accounts-for-container-identity.md)
to add GMSA support to Windows workloads.

Signed-off-by: Jean Rouge <rougej+github@gmail.com>

api/openapi-spec/swagger.json

@@ -11222,6 +11222,16 @@
     },
     "io.k8s.api.core.v1.WindowsSecurityContextOptions": {
       "description": "WindowsSecurityContextOptions contain Windows-specific options and credentials.",
+      "properties": {
+        "gmsaCredentialSpec": {
+          "description": "GMSACredentialSpec is where the GMSA admission webhook (https://github.com/kubernetes-sigs/windows-gmsa) inlines the contents of the GMSA credential spec named by the GMSACredentialSpecName field. This field is alpha-level and is only honored by servers that enable the WindowsGMSA feature flag.",
+          "type": "string"
+        },
+        "gmsaCredentialSpecName": {
+          "description": "GMSACredentialSpecName is the name of the GMSA credential spec to use. This field is alpha-level and is only honored by servers that enable the WindowsGMSA feature flag.",
+          "type": "string"
+        }
+      },
       "type": "object"
     },
     "io.k8s.api.events.v1beta1.Event": {