format src and tests with clang-format

src/common/threads.cpp

@@ -5,9 +5,9 @@
 
 #include <algorithm>
 #include <atomic>
+#include <cerrno>
 #include <chrono>             // IWYU pragma: keep
 #include <condition_variable> // IWYU pragma: keep
-#include <cerrno>
 #include <mutex>
 #include <vector>