versionless url for badge

https://docs.dependencytrack.org/integrations/badges/

### Current Behavior:
You need to hardcode version (or UUID - which changes by version (!)) in the url for the badge - it would be more convenient to have an url for latest version.

### Proposed Behavior:
Just point at name and get semver latest version (or latest scanned version) - this way the url can be stable in READMEs etc.

Start with the badge integration documentation at https://docs.dependencytrack.org/integrations/badges/ and trace how badge URLs resolve the hardcoded version or UUID. Define the stable name-based URL behavior and verify that it selects the latest semver or latest scanned version without breaking existing URLs.

Written by the indexing model from the issue text.