Unable to configure private gitlab selfhosted maven registry

[mmos-dev]

How are you running Renovate?

Self-hosted Renovate

If you're self-hosting Renovate, tell us which platform (GitHub, GitLab, etc) and which version of Renovate.

GitLab, version 39

Please tell us more about your question or problem

i want renovate to lookup my library, which is hosted on my private selfhosted gitlab maven registry.
the config is the following:

{
"$schema": "https://docs.renovatebot.com/renovate-schema.json",
"extends": [
"config:recommended",
":dependencyDashboard"
],
"hostRules": [
{
"hostType": "maven",
"matchHost": "https://git.my-instance/api/v4",
"token": "$PRIVATE_TOKEN"
}
],

"prHourlyLimit": 10
}
but the debug logs always give me

Logs (if relevant)

Logs

DEBUG: GET https://git.my-instance/api/v4/projects/15/packages/maven/javax/servlet/servlet-api/maven-metadata.xml = (code=ERR_NON_2XX_3XX_RESPONSE, statusCode=401 retryCount=0, duration=323) (repository=sssw/mmos/mmos-configurationservice)
DEBUG: Dependency lookup unauthorized. Please add authentication with a hostRule for https://git.my-instance/api/v4/projects/15/packages/maven/javax/servlet/servlet-api/maven-metadata.xml (repository=sssw/mmos/mmos-configurationservice)

[github-actions[bot]]

Hi there,

The logs you provided are insufficient to help you.

Please provide more logs, or more detailed logs, so we can help you. Be sure to include DEBUG logs, and don't excessively redact or truncate them.

If you feel the logs are too large to paste here, please use a service like GitHub Gist and paste the link here.

Read the Renovate docs, Troubleshooting to learn more about getting the correct logs.

Thanks, the Renovate team

[Juoper]

i have the same issue