Release major version 8

What does this MR do?

Release major version 8

What are the relevant issue numbers / merge requests ?

• Composition Analysis major analyzer version bum... (gitlab-org/gitlab#514100 - closed)

Does this MR meet the acceptance criteria?

• Changelog entry added
• 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
• Job definition updated, if necessary
  • Auto-DevOps template
  • Job definition example
  • CI Templates
• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Conforms to the Ruby guidelines
• Security reports checked/validated by reviewer