Upgrade formatting to clang-format 10 (#5895)

* Update formatting tools to clang-format-10

* Reformat using clang-format-10.0.09

src/server/connection.cpp

@@ -211,5 +211,5 @@ std::vector<char> Connection::compress_buffers(const std::vector<char> &uncompre
 
     return compressed_data;
 }
-}
-}
+} // namespace server
+} // namespace osrm