IWYU: add memory for std::unique_ptr in MaglevPrintingVisitor

Bug: chromium:957519
Change-Id: I33377e652f31e5dc54b8941a6b49ea8c76690597
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3492522Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Stephan Hartmann <stha09@googlemail.com>
Cr-Commit-Position: refs/heads/main@{#79303}

src/maglev/maglev-graph-printer.h

@@ -5,6 +5,7 @@
 #ifndef V8_MAGLEV_MAGLEV_GRAPH_PRINTER_H_
 #define V8_MAGLEV_MAGLEV_GRAPH_PRINTER_H_
 
+#include <memory>
 #include <ostream>
 #include <set>
 #include <vector>