Kargo Bid Adapter: Forward schain in the request (prebid#10202)

* KargoBidAdapter: GPP Support

* kargo adapter to forward schain object (#21)

* wrap in if statement (#22)

* KRKPD-572: Add spec for schain (#23)

* wrap in if statement

* update test for schain, file formatting

---------

Co-authored-by: Jeremy Sadwith <[email protected]>

Author: juliangan07

modules/kargoBidAdapter.js

@@ -97,6 +97,10 @@ function buildRequests(validBidRequests, bidderRequest) {
     user: getUserIds(tdidAdapter, bidderRequest.uspConsent, bidderRequest.gdprConsent, firstBidRequest.userIdAsEids, bidderRequest.gppConsent),
   });
 
+  if (firstBidRequest.schain && firstBidRequest.schain.nodes) {
+    krakenParams.schain = firstBidRequest.schain
+  }
+
   const reqCount = getRequestCount()
   if (reqCount != null) {
     krakenParams.requestCount = reqCount;