[CodeFormat] Clang-format cpp sources (#4965)

Clang-format all c++ source files.

be/test/runtime/string_value_test.cpp

@@ -17,9 +17,10 @@
 
 #include "runtime/string_value.hpp"
 
-#include <string>
 #include <gtest/gtest.h>
 
+#include <string>
+
 #include "util/cpu_info.h"
 
 using std::string;
@@ -81,7 +82,7 @@ TEST(StringValueTest, TestCompare) {
     }
 }
 
-}
+} // namespace doris
 
 int main(int argc, char** argv) {
 #if 0
@@ -97,4 +98,3 @@ int main(int argc, char** argv) {
     doris::CpuInfo::init();
     return RUN_ALL_TESTS();
 }
-