Annotate ReactNativeJNISoLoader as InteropLegacyArchitecture (#53406)

Summary:
Pull Request resolved: #53406

The `ReactNativeJNISoLoader` class (previously called BridgeSoLoader)
is actually a Legacy Architecture class.
However is used by `CxxModuleWrapperBase` which is needed by interop, so we need to keep it around.
I'm adding the annotation so we won't forget about it.

Changelog:
[Internal] [Changed] -

Reviewed By: cipolleschi

Differential Revision: D80710951

fbshipit-source-id: ed353e2b14c742b25962f0b81beba6dc90157709

Author: cortinico

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

@@ -7,8 +7,10 @@
 
 package com.facebook.react.bridge
 
+import com.facebook.react.common.annotations.internal.InteropLegacyArchitecture
 import com.facebook.soloader.SoLoader
 
+@InteropLegacyArchitecture
 internal object ReactNativeJNISoLoader {
 
   @JvmStatic