Fix CI, again (#4083)

single_include/nlohmann/json_fwd.hpp

@@ -24,8 +24,6 @@
 // SPDX-FileCopyrightText: 2013-2022 Niels Lohmann <https://nlohmann.me>
 // SPDX-License-Identifier: MIT
 
-
-
 // This file contains all macro definitions affecting or depending on the ABI
 
 #ifndef JSON_SKIP_LIBRARY_VERSION_CHECK
@@ -117,7 +115,6 @@
     }  // namespace nlohmann
 #endif
 
-
 /*!
 @brief namespace for Niels Lohmann
 @see https://github.com/nlohmann