CHW-4805 QuarantinePackageRequired

quarantine action requires a package name segment in the path before /versions/

Default message: quarantine action requires a package name segment in the path before /versions/
HTTP status: 400 (client)

Problem. A POST .../versions/{ver}/quarantine request did not carry a package-name segment. Cause. The path before /versions/ was empty. Fix. Supply the package identifier in the path (e.g. /api/repos/{repo}/packages/foo/versions/1.2.3/quarantine). HTTP 400.