This module was removed in Prebid.js 11.0. See the Prebid.js 11 release notes.
The Google Ad Manager Adpod module was removed in Prebid.js 11.0 along with ad pod (long-form) video support.
This module exposes the `pbjs.adServers.dfp.buildAdpodVideoUrl method, required to use adpod with Google Ad Manager.