adds missing import

fixes joltup#258

Author: Ron Radtke

android/src/newarch/java/com/ReactNativeBlobUtil/ReactNativeBlobUtil.java

@@ -11,6 +11,7 @@
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReadableArray;
 import com.facebook.react.bridge.ReadableMap;
+import com.facebook.react.bridge.ReactMethod;
 
 import java.util.HashMap;
 import java.util.Map;