Memory Leak when fetch Demand

[rBeefrz]

Describe the bug A clear and concise description of what the bug is. Memory leak on calling fetchdemand.

To Reproduce Steps to reproduce the behavior: Call FetchDemand, see stack traces below:

Expected behavior A clear and concise description of what you expected to happen. No memory leak reported in instrument

Smartphone (please complete the following information):

• Device: iphone 14
• OS: v16

Additional context Perhaps linked to https://developer.apple.com/documentation/foundation/urlsession/1411597-init & this when .invalidate() is currently used in the AdUnit.swift (not sure here.)

[jsligh]

@rBeefrz was this recorded in a debug build? A strong Self is passed in a debug build on line 223 of PrebidServerConnection.swift which can definitely cause memory leaks.