Draft: Adds generic security report type

⚠️ NOTE ⚠

NOTE This MR is too large and is being split into separate MRs:

• Adding a tracking field to vulnerabilities in security reports
  • This is essentially a generic version of the location field
• Adding a details field + dynamic rendering of typed objects to vulnerabilities in security reports
  • !41783 (closed)
• Add a generic security report type to GitLab
  • Will depend on the previous two MRs

What does this MR do?

This MR adds a generic security report type and is an implementation of the proposal to Restructure Security Reports. This MR also puts a tracking field and related code in place to Improve Vulnerability Uniqueness/Tracking.

Screenshots

TODO

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team

Closes #233168 (closed)