Unable to use cached_network_image with widget_mask

## 🐛 Bug Report

I am getting imageUrl from firebase and then displaying the image in particular shape by using widget_mask package. I want to cache the image but I am getting the below error when I use cached_network_image

======== Exception caught by scheduler library =====================================================
The following assertion was thrown during a scheduler callback:
`SaveLayer.child` cannot contain compositing layers.

The save layer, into which SaveLayer.child is painted, cannot encompass compositing layers.

Ensure `SaveLayer.child` contains no widgets which need compositing, such as `RepaintBoundary`.

: RenderAnimatedOpacity#b3163 NEEDS-PAINT
... needs compositing
... parentData: not positioned; offset=Offset(0.0, 0.0) (can use size)
... constraints: BoxConstraints(w=392.7, h=600.0)
... size: Size(392.7, 600.0)
... opacity: AnimationController#73b3d(⏭ 1.000; paused)➩Cubic(0.42, 0.00, 1.00, 1.00)➩Tween(0.0 → 1.0)➩1.0
When the exception was thrown, this was the stack:
#0 RenderSaveLayer._debugChildDoesNotNeedCompositing (package:widget_mask/src/save_layer.dart:132:7)
#1 RenderSaveLayer.needsCompositing. (package:widget_mask/src/save_layer.dart:106:9)
#2 RenderSaveLayer.needsCompositing (package:widget_mask/src/save_layer.dart:109:6)
#3 RenderObject._updateCompositingBits. (package:flutter/src/rendering/object.dart:2812:17)
#4 ContainerRenderObjectMixin.visitChildren (package:flutter/src/rendering/object.dart:4291:14)
#5 RenderObject._updateCompositingBits (package:flutter/src/rendering/object.dart:2810:5)
#6 RenderObject._updateCompositingBits. (package:flutter/src/rendering/object.dart:2811:13)
#7 RenderObjectWithChildMixin.visitChildren (package:flutter/src/rendering/object.dart:4000:14)
#8 RenderObject._updateCompositingBits (package:flutter/src/rendering/object.dart:2810:5)
#9 RenderObject._updateCompositingBits. (package:flutter/src/rendering/object.dart:2811:13)
#10 RenderObjectWithChildMixin.visitChildren (package:flutter/src/rendering/object.dart:4000:14)
#11 RenderObject._updateCompositingBits (package:flutter/src/rendering/object.dart:2810:5)
#12 RenderObject._updateCompositingBits. (package:flutter/src/rendering/object.dart:2811:13)
#13 ContainerRenderObjectMixin.visitChildren (package:flutter/src/rendering/object.dart:4291:14)
#14 RenderObject._updateCompositingBits (package:flutter/src/rendering/object.dart:2810:5)
#15 RenderObject._updateCompositingBits. (package:flutter/src/rendering/object.dart:2811:13)
#16 RenderObjectWithChildMixin.visitChildren (package:flutter/src/rendering/object.dart:4000:14)
#17 RenderObject._updateCompositingBits (package:flutter/src/rendering/object.dart:2810:5)
#18 PipelineOwner.flushCompositingBits (package:flutter/src/rendering/object.dart:1081:14)
#19 RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:495:19)
#20 WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:918:13)
#21 RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:360:5)
#22 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1297:15)
#23 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1227:9)
#24 SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:1085:5)
#25 _invoke (dart:ui/hooks.dart:170:13)
#26 PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:401:5)
#27 _drawFrame (dart:ui/hooks.dart:140:31)