Crash in AudioRandomContainerRuntime::CleanUpFinishedClipPlayables when pausing AudioListener

Reproduction steps:

1. Open the attached “IN-148019” project
2. Switch platform to Android
3. Build and run the Android Player
4. In the Player, click “Play ARC”
5. Without waiting, click “AudioListener.pause”
6. Observe the Crash

Reproducible with: 6000.0.78f1, 6000.3.19f1, 6000.5.4f1, 6000.6.0b2, 6000.7.0a2

Testing environment: macOS 26.5.2

Reproducible with these devices:
VLNQA00641 - Google Pixel 9 (Pixel 9), CPU: Google Tensor G4, GPU: Mali-G715, OS: 16
VLNQA00422 - Galaxy S21 Ultra 5G (SM-G998B), CPU: Exynos 2100, GPU: Mali-G78, OS: 11

First few lines of stack trace:
#00 AudioRandomContainerRuntime::CleanUpFinishedClipPlayables() at UnityICallRegistration.cpp:0
#01 AudioRandomContainerRuntime::Update() at UnityICallRegistration.cpp:0
#02 AudioSource::DoUpdate() at UnityICallRegistration.cpp:0
#03 AudioManager::Update() at UnityICallRegistration.cpp:0
#04 AudioModule::Update() at UnityICallRegistration.cpp:0
#05 ExecutePlayerLoop(NativePlayerLoopSystem*) at UnityICallRegistration.cpp:0