Update bandit: v1.6.2 -> v1.6.3

What does this MR do?

Update bandit to the new v1.6.3, which was released a few hours ago. Full changlog is available from https://github.com/PyCQA/bandit/releases/tag/1.6.3.

What are the relevant issue numbers?

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 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