Crash during autotest

[Quireg]

Hi team, thank you for the wonderful library.
I came across this crash and decided to share it with you.

ฅ^•ﻌ•^ฅ

Please complete the following information:

• Library Version [e.g. v1.2.7]
• Affected Device(s) [-]

Describe the Bug:

08-05 13:48:39.452 4500 4500 E AndroidRuntime: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.ViewGroup$LayoutParams android.widget.PopupWindow$PopupDecorView.getLayoutParams()' on a null object reference
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at android.widget.PopupWindow.getDecorViewLayoutParams(PopupWindow.java:2363)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at android.widget.PopupWindow.update(PopupWindow.java:2239)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at com.skydoves.powerspinner.PowerSpinnerView$show$1.invoke$lambda$0(PowerSpinnerView.kt:764)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at com.skydoves.powerspinner.PowerSpinnerView$show$1.$r8$lambda$sxw4-pEekfKgYcMVXbjivnSTk04(Unknown Source:0)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at com.skydoves.powerspinner.PowerSpinnerView$show$1$$ExternalSyntheticLambda0.run(Unknown Source:2)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:942)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:99)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at android.os.Looper.loopOnce(Looper.java:201)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at android.os.Looper.loop(Looper.java:288)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:7937)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:569)
08-05 13:48:39.452 4500 4500 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1019)

Expected Behavior:
When dialog is dismissed it's decorView becomes null.