[JENKINS-71921] Updates Lombok and Lombok maven plugin versions to 1.18.30(.1)

[alecharp]

see JENKINS-71921

Testing done

I ran mvn verify locally after building the lombok-maven-plugin as awhitford/lombok.maven#180 is required for this to work and the pull request is not merged nor release when creating this pull request.

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4. Link to relevant issues in GitHub or Jira
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6. Ensure you have provided tests - that demonstrates feature works or fixes the issue

[alecharp]

@jenkinsci/google-compute-engine-plugin-developers could you please review this pull request? Thanks