Upgrade formatting to clang-format 10 (#5895)

* Update formatting tools to clang-format-10

* Reformat using clang-format-10.0.09

src/engine/engine_config.cpp

@@ -27,5 +27,5 @@ bool EngineConfig::IsValid() const
             storage_config.IsValid()) &&
            limits_valid;
 }
-}
-}
+} // namespace engine
+} // namespace osrm