Fix breaks from googletest upgrade (vulkan_compute_api_test) (#9760)

Summary:

Missing include in vulkan_compute_api_test.cpp - added

Reviewed By: SS-JIA

Differential Revision: D72139603

Author: Guy Hershenbaum

backends/vulkan/test/vulkan_compute_api_test.cpp

@@ -9,6 +9,7 @@
 #include <gtest/gtest.h>
 
 #include <bitset>
+#include <iomanip>
 #include <utility>
 #include <vector>