Fix MissingOverrideAnnotation: Add @OverRide to getRootViewTag and setRootViewTag (#55980)

Summary:
Pull Request resolved: #55980

Fixed MissingOverrideAnnotation lint errors in ReactRootView.java.

Added Override annotation to getRootViewTag() and setRootViewTag() methods which override methods from a superclass but were missing the annotation.

changelog: [internal] internal

Reviewed By: OmarBafagih

Differential Revision: D95412652

fbshipit-source-id: 4a230fec3fee83c0bd91bfbc2651dc463b92fa19

Author: mdvacca

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactRootView.java

@@ -868,6 +868,7 @@ protected void finalize() throws Throwable {
             + " or in the onDestroyView() of your hosting Fragment.");
   }
 
+  @Override
   public int getRootViewTag() {
     return mRootViewTag;
   }
@@ -876,6 +877,7 @@ private boolean isRootViewTagSet() {
     return mRootViewTag != 0 && mRootViewTag != NO_ID;
   }
 
+  @Override
   public void setRootViewTag(int rootViewTag) {
     mRootViewTag = rootViewTag;
   }