Maven can't publish to github packages 422

Hi, I have tryed to publish my java project to github maven repo
but it always fails (from web)

Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy (default-deploy) on project Spigot-SimpleCommandsLib: Failed to deploy artifacts: Could not transfer artifact from/to github (+:// transfer failed for +://, status: 422 Unprocessable Entity → [Help 1]

repository: GitHub - Raffa50/Spigot-SimpleCommandsLib

i have tryed any solution on the web, suggestions?