Fix duplicate rule IDs in bandit rules

What does this MR do?

Fix duplicate rule IDs in bandit rules

Semgrep's behavior is undefined if multiple rules use the same ID.

This commit renames some rule IDs and removes a duplicate rule.

What are the relevant issue numbers?

N/A

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
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  • Job definition example
  • CI Templates
• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Security reports checked/validated by reviewer