Update gitlab-api to 5.8.1-106.vef1de800710e

[jonesbusy]

Normally just updating gitlab-api should be enough

But better to ensure minimum version and directly bump to supported bom version

Related to #195

Testing done

mvn clean install

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests that demonstrate the feature works or the issue is fixed

[krisstern]

Thanks @jonesbusy for the PR! Let me cut a new release later today

[krisstern]

Apologies for the delay. The latest release has been cut at https://github.com/jenkinsci/gitlab-oauth-plugin/releases/tag/gitlab-oauth-1.23.