ANR during FirebaseInitProvider.onCreate - SimpleArrayMap/ContainerHelpersKt class initialization

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- For help troubleshooting your application that does not fall under one of the above categories,
reach out to the personalized [Firebase support channel](https://firebase.google.com/support/).

### [REQUIRED] Step 2: Describe your environment

- Android Studio version: Android Studio Otter | 2025.2.1 Patch 1
- Firebase Component: Firebase Core (firebase-common)
- Component version: BOM 34.3.0

### [REQUIRED] Step 3: Describe the problem

We are seeing ANRs during app cold start caused by slow `class static initialization ()` in FirebaseApp triggered by `FirebaseInitProvider.onCreate()` on the main thread. The main thread is blocked performing class loading/verification of `androidx.collection.SimpleArrayMap` and `ContainerHelpersKt` with no lock contention and all other threads are idle.
This impacts lower-end devices during cold start. Since `FirebaseInitProvider` runs as a `ContentProvider` it blocks the entire app startup path before Application.onCreate() is even called.
We are already on the latest androidx.collection (1.5.0 resolved).

#### Steps to reproduce:
Cannot reproduce locally. Observed in production via Crashlytics on lower-end devices during cold start.
```Stack trace 1:
"main" tid=1 Runnable
at androidx.collection.SimpleArrayMap. (SourceFile:65354)
at com.google.firebase.FirebaseApp. (SourceFile:65354)
at com.google.firebase.provider.FirebaseInitProvider.onCreate (SourceFile:65348)
at android.content.ContentProvider.attachInfo (ContentProvider.java:2648)
at android.content.ContentProvider.attachInfo (ContentProvider.java:2616)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo (SourceFile:65352)
at android.app.ActivityThread.installProvider (ActivityThread.java:8490)
at android.app.ActivityThread.installContentProviders (ActivityThread.java:8003)
at android.app.ActivityThread.handleBindApplication (ActivityThread.java:7667)
```

Stack trace 2:

```"main" tid=1 Runnable
at androidx.collection.internal.ContainerHelpersKt. (SourceFile:65354)
at androidx.collection.SimpleArrayMap. (SourceFile:65354)
at com.google.firebase.FirebaseApp. (SourceFile:65354)
at com.google.firebase.provider.FirebaseInitProvider.onCreate (SourceFile:65348)
at android.content.ContentProvider.attachInfo (ContentProvider.java:2648)
at android.content.ContentProvider.attachInfo (ContentProvider.java:2616)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo (SourceFile:65352)
at android.app.ActivityThread.installProvider (ActivityThread.java:8490)
at android.app.ActivityThread.installContentProviders (ActivityThread.java:8003)
at android.app.ActivityThread.handleBindApplication (ActivityThread.java:7667)
```

In both cases, all other threads (binder, daemon, SharedPreferences, etc.) are idle or in waiting state — no lock contention is involved.

What happened? How can we make the problem occur? This could be a description, log/console output,
etc.

**Device & OS breakdown**

Android versions: Android 15 (SDK 35), Android 16 Beta (SDK 36)
Visibility: Foreground
Top affected devices:

- realme RE6095
- realme RE6054
- realme RE58BC
- realme RE5C9F

#### Relevant Code:

```
// No app code involved. ANR occurs before Application.onCreate()
// during ContentProvider initialization triggered by the system.
// FirebaseInitProvider is auto-merged into the manifest by the Firebase SDK.
```