Support swift and objective-c

What does this MR do?

Enable swift, objective-c ('generic' for only .m files) support for MobSF rules

What are the relevant issue numbers?

Migrate MobSF rules to Semgrep-based analyzer (gitlab-org/gitlab#450925 - closed) • Hua Yan

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 updated/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