feat(misconf): Register rego rules on import

[simar7]

Description

Register rego rules on import

Checklist

• I've read the guidelines for contributing to this repository.
• I've followed the conventions in the PR title.
• I've added tests that prove my fix is effective or that my feature works.
• I've updated the documentation with the relevant information (if needed).
• I've added usage information (if the PR introduces new options)
• I've included a "before" and "after" example to the description (if the PR is a user interface change).

[DmitriyLewen]

@simar7
can you compare the startup time of Trivy (eg using -v command) to make sure it doesn't slow down Trivy?

[nikpivkin]

A PR was recently introduced that changed the process for loading checks: instead of importing, they were loaded on demand. However, the current PR returns the same behavior. Why was this decision made?

[simar7]

A PR was recently introduced that changed the process for loading checks: instead of importing, they were loaded on demand. However, the current PR returns the same behavior. Why was this decision made?

I forgot about my own PR 😆 - actually yes I didn't realize that LoadAndRegister() is exported so it can be called by users of this package. I'll take it offline with the team that requested this and close this PR.