Сriteo: ortb 2.6 support (#3969)

Author: katherynhrabik

src/main/resources/bidder-config/criteo.yaml

@@ -1,6 +1,9 @@
 adapters:
   criteo:
+    ortb-version: "2.6"
     endpoint: https://ssp-bidder.criteo.com/openrtb/pbs/auction/request?profile=230
+    ortb:
+      multiformat-supported: true
     meta-info:
       maintainer-email: [email protected]
       app-media-types:
@@ -13,6 +16,7 @@ adapters:
         - native
       supported-vendors:
       vendor-id: 91
+
     usersync:
       cookie-family-name: criteo
       redirect:

src/test/resources/org/prebid/server/it/openrtb2/criteo/test-criteo-bid-request.json

@@ -41,9 +41,7 @@
     "ip": "193.168.244.1"
   },
   "regs": {
-    "ext": {
       "gdpr": 0
-    }
   },
   "ext": {
     "prebid": {