Prebid Server prepare for next development iteration

Author: Net-burst

extra/modules/pom.xml

@@ -26,7 +26,7 @@
         <maven.compiler.source>11</maven.compiler.source>
         <maven.compiler.target>11</maven.compiler.target>
 
-        <prebid-server.version>1.80.0</prebid-server.version>
+        <prebid-server.version>1.81.0-SNAPSHOT</prebid-server.version>
 
         <lombok.version>1.18.22</lombok.version>