Make RetryableMountingLayerException internal (facebook#51171)

Summary:
This class can be internalized as part of the initiative to reduce the public API surface. I've checked there are [no relevant OSS usages](https://github.com/search?type=code&q=NOT+is%3Afork+NOT+org%3Afacebook+NOT+repo%3Areact-native-tvos%2Freact-native-tvos+NOT+repo%3Anuagoz%2Freact-native+NOT+repo%3A2lambda123%2Freact-native+NOT+repo%3Abeanchips%2Ffacebookreactnative+NOT+repo%3AfabOnReact%2Freact-native-notes+NOT+user%3Ahuntie+NOT+user%3Acortinico+NOT+repo%3AMaxdev18%2Fpowersync_app+NOT+repo%3Acarter-0%2Finstagram-decompiled+NOT+repo%3Am0mosenpai%2Finstadamn+NOT+repo%3AA-Star100%2FA-Star100-AUG2-2024+NOT+repo%3Alclnrd%2Fdetox-scrollview-reproductible+NOT+repo%3ADionisisChytiris%2FWorldWiseTrivia_Main+NOT+repo%3Apast3l%2Fhi2+NOT+repo%3AoneDotpy%2FCaribouQuest+NOT+repo%3Abejayoharen%2Fdailytodo+NOT+repo%3Amolangning%2Freversing-discord+NOT+repo%3AScottPrzy%2Freact-native+NOT+repo%3Agabrieldonadel%2Freact-native-visionos+NOT+repo%3AGabriel2308%2FTestes-Soft+NOT+repo%3Adawnzs03%2FflakyBuild+NOT+repo%3Acga2351%2Fcode+NOT+repo%3Astreeg%2Ftcc+NOT+repo%3Asoftware-mansion-labs%2Freact-native-swiftui+NOT+repo%3Apkcsecurity%2Fdecompiled-lightbulb+com.facebook.react.bridge.RetryableMountingLayerException).

## Changelog:

[INTERNAL] - Make com.facebook.react.bridge.RetryableMountingLayerException internal

Pull Request resolved: facebook#51171

Test Plan:
```bash
yarn test-android
yarn android
```

Reviewed By: rshest

Differential Revision: D74381780

Pulled By: cortinico

fbshipit-source-id: 6d7255318669ac8edd0010d9655a105e72adf011

Author: mateoguzmana

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -1457,12 +1457,6 @@ public final class com/facebook/react/bridge/ReadableType : java/lang/Enum {
 	public static fun values ()[Lcom/facebook/react/bridge/ReadableType;
 }
 
-public final class com/facebook/react/bridge/RetryableMountingLayerException : java/lang/RuntimeException {
-	public fun <init> (Ljava/lang/String;)V
-	public fun <init> (Ljava/lang/String;Ljava/lang/Throwable;)V
-	public fun <init> (Ljava/lang/Throwable;)V
-}
-
 public final class com/facebook/react/bridge/RuntimeExecutor : com/facebook/jni/HybridClassBase {
 }
 

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/RetryableMountingLayerException.kt

@@ -11,11 +11,11 @@ package com.facebook.react.bridge
  * ViewCommands can throw this Exception. If this is caught during the execution of a ViewCommand
  * mounting instruction, it indicates that the mount item can be safely retried.
  */
-public class RetryableMountingLayerException : RuntimeException {
+internal class RetryableMountingLayerException : RuntimeException {
 
-  public constructor(msg: String) : super(msg)
+  constructor(msg: String) : super(msg)
 
-  public constructor(e: Throwable) : super(e)
+  constructor(e: Throwable) : super(e)
 
-  public constructor(msg: String, e: Throwable?) : super(msg, e)
+  constructor(msg: String, e: Throwable?) : super(msg, e)
 }