Update Java & Kotlin samples to Google Mobile Ads SDK version 24.4.0 PiperOrigin-RevId: 769650660

Creating release v5.8 

Creating release v5.7 

Creating release v5.6 

Creating release v5.3 

Creating release v5.2 

Creating release v5.1 

Creating release v5.0 

Creating release v4.5 

Creating release v4.4