Covarege fuzzing - Fix typo in help path

What does this MR do?

This is a follow up to !43545 (merged) it's behind a feature flag, but currently enabled in production only for the fuzzing demo project.

Enabled for gitlab-org/security-products/demos/coverage-fuzzing/go-fuzzing-example!10 (closed)

Bug

Link is not defined for the tooltip link. The text exists, but the link redirects to the current page, as opposed to the docs. Confirmed that the code change links to the correct docs.

Screenshots (strongly suggested)

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