clang-format: update to latest from docs repo

This is from openbmc/docs/style/cpp/.clang-format

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I5b80bb568451706afb6d268b41e1a5357a2ca6db
diff --git a/test/systemd_parser.cpp b/test/systemd_parser.cpp
index cb3a609..cbe795c 100644
--- a/test/systemd_parser.cpp
+++ b/test/systemd_parser.cpp
@@ -1,10 +1,11 @@
 #include <systemd_target_parser.hpp>
-#include <gtest/gtest.h>
 
-#include <iostream>
 #include <cstdio>
 #include <cstdlib>
 #include <filesystem>
+#include <iostream>
+
+#include <gtest/gtest.h>
 
 namespace fs = std::filesystem;