ADOT Bid Adapter: fix handle empty refererInfo (#8643)
ADOT Bid Adapter: fix handle empty refererInfo (#8643)

* [DSP-3707] fix: Handle empty refererInfo

[DSP-3707] fix: Handle empty refererInfo

* [DSP-3707] fix: handle empty referer info
prebid/Prebid.js,gumgum/Prebid.js,HuddledMasses/Prebid.js,prebid/Prebid.js,gumgum/Prebid.js,PubWise/Prebid.js,ImproveDigital/Prebid.js,HuddledMasses/Prebid.js,gumgum/Prebid.js,HuddledMasses/Prebid.js,PubWise/Prebid.js,ImproveDigital/Prebid.js,ImproveDigital/Prebid.js,PubWise/Prebid.js,prebid/Prebid.js