Adhese: Use different endpoint

[github-actions[bot]]

Code coverage summary

Note:

• Prebid team doesn't anticipate tests covering code paths that might result in marshal and unmarshal errors

• Coverage summary encompasses all commits leading up to the latest one, 8fcff25805db9ba9be948edd4bd21ad18162ac99

  adhese

  Refer here for heat map coverage report

  github.com/prebid/prebid-server/v2/adapters/adhese/adhese.go:25:    makeSlot        100.0%
  github.com/prebid/prebid-server/v2/adapters/adhese/adhese.go:29:    MakeRequests        85.7%
  github.com/prebid/prebid-server/v2/adapters/adhese/adhese.go:106:   inferBidTypeFromImp 100.0%
  github.com/prebid/prebid-server/v2/adapters/adhese/adhese.go:123:   MakeBids        72.7%
  github.com/prebid/prebid-server/v2/adapters/adhese/adhese.go:199:   Builder         100.0%
  total:                                  (statements)        82.9%