Upgrade formatting to clang-format 10 (#5895)

* Update formatting tools to clang-format-10

* Reformat using clang-format-10.0.09

src/util/timed_historgram.cpp

@@ -8,5 +8,5 @@ namespace detail
 {
 std::atomic_uint operation = {0};
 }
-}
-}
+} // namespace util
+} // namespace osrm