Don't destroy ScreenshotActivity on size changes

Bug: 267764961
Test: SystemUIGoogleScreenshotTests
Change-Id: I9f58c9e9e95d2dde062346f7f8fcd9fe8e0d9cc3
diff --git a/packages/SystemUI/screenshot/AndroidManifest.xml b/packages/SystemUI/screenshot/AndroidManifest.xml
index a405836..ba3dc8c 100644
--- a/packages/SystemUI/screenshot/AndroidManifest.xml
+++ b/packages/SystemUI/screenshot/AndroidManifest.xml
@@ -20,6 +20,7 @@
     <application>
         <activity
             android:name="com.android.systemui.testing.screenshot.ScreenshotActivity"
+            android:configChanges="orientation|screenSize|screenLayout|smallestScreenSize"
             android:exported="true"
             android:theme="@style/Theme.SystemUI.Screenshot" />
     </application>