remove check if pkgID has already been checked for recursive vuln query

[pxp928]

Description of the PR

A quick fix to remove if !checkedIDs[pkgID] { from line 540 as we would want to show a path to transient dependencies that also have the dependency on the same vulnerable package (even if it was already checked).

PR Checklist

• All commits have a Developer Certificate of Origin (DCO) -- they are generated using -s flag to git commit.
• All new changes are covered by tests
• If GraphQL schema is changed, make generate has been run
• If collectsub protobuf has been changed, make proto has been run
• All CI checks are passing (tests and formatting)
• All dependent PRs have already been merged