[REQ] support auth token

[ramarro123]

hi,

i try to generate client in java for https://gitlab.com/gitlab-org/gitlab/-/raw/master/doc/api/openapi/openapi.yaml

using java -jar openapi-generator-cli-7.3.0.jar generate -i openapi.yaml -g java --additional-properties=library=native,annotationLibrary=none

the problem is that private-token is not included anywhere so i can't add auth header

am i missing something in that? maybe the support for this kind of specs is missing?