Changes to GET /v4/advertisers/:advertiserId/adGroupAds

removed the media type */* for the response with the status 200

the response optional property adGroupAds/items/audioAd/video/unavailableReason became read-only for the status 200

the response optional property adGroupAds/items/bumperAd/commonInStreamAttribute/trackingUrl became read-only for the status 200

the response optional property adGroupAds/items/bumperAd/commonInStreamAttribute/video/unavailableReason became read-only for the status 200

the response optional property adGroupAds/items/demandGenVideoAd/videos/items/unavailableReason became read-only for the status 200

the response optional property adGroupAds/items/inStreamAd/commonInStreamAttribute/trackingUrl became read-only for the status 200

the response optional property adGroupAds/items/inStreamAd/commonInStreamAttribute/video/unavailableReason became read-only for the status 200

the response optional property adGroupAds/items/mastheadAd/companionYoutubeVideos/items/unavailableReason became read-only for the status 200

the response optional property adGroupAds/items/mastheadAd/video/unavailableReason became read-only for the status 200

the response optional property adGroupAds/items/nonSkippableAd/commonInStreamAttribute/trackingUrl became read-only for the status 200

the response optional property adGroupAds/items/nonSkippableAd/commonInStreamAttribute/video/unavailableReason became read-only for the status 200

the response optional property adGroupAds/items/videoDiscoverAd/video/unavailableReason became read-only for the status 200

the response optional property adGroupAds/items/videoPerformanceAd/domain became read-only for the status 200

the response optional property adGroupAds/items/videoPerformanceAd/trackingUrl became read-only for the status 200

the response optional property adGroupAds/items/videoPerformanceAd/videos/items/unavailableReason became read-only for the status 200