AK: Add missing Array.h include to CheckedFormatString.h

BertalanD · bgianfo · commit 2b1864c53a13 · 2021-12-24T14:35:33.000-08:00
GCC 12 complains that iota_array is used before it's declared. GCC 11
works fine without it though.
diff --git a/AK/CheckedFormatString.h b/AK/CheckedFormatString.h
@@ -8,6 +8,7 @@
 
 #include <AK/AllOf.h>
 #include <AK/AnyOf.h>
+#include <AK/Array.h>
 #include <AK/StdLibExtras.h>
 #include <AK/StringView.h>
 
