PhotoTable - upgraded API level to 31.

The AndroidManifest.xml file of PhotoTable has been upgraded
such that its targetSdkVersion is now 31.

Test: manual

Change-Id: I8a154af17248955e3255c51621bee53d1f685372
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 1e7fbdd..21a428a 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -6,7 +6,7 @@
   <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
   <uses-permission android:name="android.permission.WAKE_LOCK" />
   <uses-permission android:name="com.google.android.gallery3d.permission.PICASA_STORE" />
-  <uses-sdk android:minSdkVersion="17" android:targetSdkVersion="30"/>
+  <uses-sdk android:minSdkVersion="17" android:targetSdkVersion="31"/>
 
   <application
       android:label="@string/app_name"