Replace QA test pipelines with Integration test for Spotbugs

What does this MR do?

• Integrate integration-test approach with Spotbugs analyzer.
  • Cloned following Tests projects into qa/fixtures as a part of above approach:
    • kotlin-gradle(kotlin)
    • java-groovy(groovy)
    • monorepo-spotbugs(monorepo with java project removed so you might find a significant diff between prev and current SAST reports)
    • scala-sbt(scala)
• Following QA pipelines are removed from GitLab CI with the reasons attached:
  • Replaced by integration-test job: java-groovy-qa, scala-sbt-qa, monorepo-spotbugs-qa, kotlin-gradle-qa
  • Java-related jobs are moved to Semgrep(MR): java-maven-java-17-qa, java-maven-multimodules-qa, java-maven-java-11-qa, custom-ca-cert (out of scope, read here) and java-gradle-qa

What are the relevant issue numbers?

• Improve SAST analyzer tests (gitlab-org/gitlab#366852 - closed)

Does this MR meet the acceptance criteria?

• Changelog entry added Not applicable on developer-facing changes
• Documentation created/updated for GitLab EE, if necessary
• Documentation created/updated for this project, if necessary
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Job definition updated, if necessary
  • Auto-DevOps template
  • Job definition example
  • CI Templates
• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Security reports checked/validated by reviewer