[Unity] Out of memory after watching 5 video (rewarded video or interstial)

[Phúc Nguyễn Minh]

Hi, 
I'm currently inspecting memory consumption on ads mediation. And checking memory while watching video ads and after ads close.
The demo app crash after 4-5  video while memory is reaching nearly 1GB for a HelloWorld project.
The only thing I changed is:
- AppId in GoogleMobileAdsSettings.asset.
- InterAdUnitId.
- RewardAdUnitId.
- BannerAdUnit.
- Target SDK  34
- Mediation: Applovin (7.3.0), Unity (3.10.0), DT(3.1.12), Inmobi (4.5.1), Ironsource(3.0.1), Vungle(5.1.1), Meta(3.12.0), Mintegral(1.6.1), Pangle(2.8.0), Ogury.
- App bundle id