"*" is serialized in correctly when creating api keys.

[Hesehus-ASAL]

Elastic.Clients.Elasticsearch version: 8.15.8

Elasticsearch version:8.15.1

.NET runtime version:8.0

Operating system version: Windows 11

Description of the problem including expected versus actual behavior:
CreateApiKeyRequest, has RoleDescriptors, witch has IndicesPrivileges with Names
Names are Indicies. But when setting Indices to "" the "" is converted to "_all". But _all is not supported by the elastic search server.

It is the same issue with GetApiKeyResponse, where the Name is "*" and is then converted to _all when deserilized:

Expected behavior
"*" is serialized as {"name":"ElasticKeyName","role_descriptors":{"rolename":{"cluster":["manage_pipeline","manage"],"indices":[{"names":"_all","privileges":["all"]}]}}}

I would expected it to be
"" is serialized as {"name":"ElasticKeyName","role_descriptors":{"rolename":{"cluster":["manage_pipeline","manage"],"indices":[{"names":"","privileges":["all"]}]}}}

[Hesehus-ASAL]

I tried to add "a*", "b*"... as a workaround, but that was not serialized as a string array but as a joined string:
{"name":"ElasticKeyName","role_descriptors":{"myname":{"cluster":["manage_pipeline","manage"],"indices":[{"names":"a*,b*,c*,d*,e*,f*,g*,h*,i*,j*,k*,l*,m*,n*,o*,p*,q*,r*,s*,t*,u*,v*,w*,x*,y*","privileges":["all"]}]}}}

In the documentation: https://www.elastic.co/guide/en/elasticsearch/reference/current/security-api-create-api-key.html "names" is a array of strings.