Add cargo lockfile parser

What does this MR do?

Add ability to generate an sbom from project that has a Cargo.lock.

This adds back the change reverted in !819 (merged). The difference between this and the original change is that a CHANGELOG entry is added for v5.3.0.

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
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• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Security reports checked/validated by reviewer