Guard against initializer interruptions in {Catalyst,Work,RNTester}TurboModuleManagerDelegate

Summary:
Migrate over to [how we load so libraries in Fb4aTurboModuleManagerDelegate](https://fburl.com/diffusion/wu0mcr8o).

## Motivation
When we migrated Twilight over to TurboModules, we used the CatalystTurboModuleManager as a template. This led to a production crash (T70918829) because we weren't loading so's this way. The fix: D24894071.

I'm updating these two TMMDelegates so that people don't fall into the same trap when migrating other Standalone apps.

Changelog: [Internal]

Reviewed By: fkgozali

Differential Revision: D24992931

fbshipit-source-id: 3ac3b8c30a67e24f79021f915abf5ae980d5b5d3

packages/rn-tester/android/app/src/main/java/com/facebook/react/uiapp/RNTesterTurboModuleManagerDelegate.java

@@ -17,9 +17,7 @@ import java.util.List;
 
 /** This class is responsible for creating all the TurboModules for the RNTester app. */
 public class RNTesterTurboModuleManagerDelegate extends ReactPackageTurboModuleManagerDelegate {
-  static {
-    SoLoader.loadLibrary("rntester_appmodules");
-  }
+  private static volatile boolean sIsSoLibraryLoaded;
 
   protected native HybridData initHybrid();
 
@@ -30,4 +28,17 @@ public class RNTesterTurboModuleManagerDelegate extends ReactPackageTurboModuleM
       ReactApplicationContext context, List<ReactPackage> packages) {
     super(context, packages);
   }
+
+  @Override
+  protected void maybeLoadOtherSoLibraries() {
+    maybeLoadSoLibraries();
+  }
+
+  // Prevents issues with initializer interruptions.
+  private static synchronized void maybeLoadSoLibraries() {
+    if (!sIsSoLibraryLoaded) {
+      SoLoader.loadLibrary("rntester_appmodules");
+      sIsSoLibraryLoaded = true;
+    }
+  }
 }