Feature: speed up Validate check in pre-submits

[laurentsimon]

Looks like check-linter and check-osv should be able to run without installing and compiling scorecard. So we should be able to separate them.
This should additionally speed up the validation checks.

[github-actions]

This issue is stale because it has been open for 60 days with no activity.

[spencerschrock]

Completed in #1827 and #3247