Authenticate maven-test to GH packages

[SzymonReddigPC]

Description

Closes #

Type of Change

• Bug fix
• New feature
• Enhancement to existing feature
• New provider implementation
• Refactoring (no functional changes)
• Documentation
• Other: ___

Checklist

• mvn clean compile passes
• Existing tests pass (mvn test)
• New tests added (if applicable)
• README updated (if applicable)
• No credentials, API keys, or secrets in committed files

Provider-specific (if applicable)

• Provider interface implemented
• Descriptor registered via META-INF/services/
• Configuration fields defined in descriptor
• README.md with required configuration documented
• LICENSE file included

DynamoDB changes (if applicable)

• Migration path considered for existing data
• Backward-compatible key lookups added (if range key changed)
• DynamoDbSchema.java updated

Testing

[github-actions]

Welcome to Commerce Link! Thanks for your first pull request.

A maintainer will review it shortly. Please make sure:

• mvn clean compile passes
• You've followed the PR template checklist
• No credentials or secrets are included in the changes

Check our Contributing Guidelines if you haven't already.