Adds advertiserDomains to kargo adapter (#5625)

* Update kargoBidAdapter.js

* Update kargoBidAdapter_spec.js

Author: patmmccann

modules/kargoBidAdapter.js

@@ -65,7 +65,8 @@ export const spec = {
       let meta;
       if (adUnit.metadata && adUnit.metadata.landingPageDomain) {
         meta = {
-          clickUrl: adUnit.metadata.landingPageDomain
+          clickUrl: adUnit.metadata.landingPageDomain,
+          advertiserDomains: [adUnit.metadata.landingPageDomain]
         };
       }
       bidResponses.push({

test/spec/modules/kargoBidAdapter_spec.js

@@ -505,7 +505,8 @@ describe('kargo adapter tests', function () {
         netRevenue: true,
         currency: 'USD',
         meta: {
-          clickUrl: 'https://foobar.com'
+          clickUrl: 'https://foobar.com',
+          advertiserDomains: ['https://foobar.com']
         }
       }, {
         requestId: '3',