'*.cmake.in' should also formatted/checked

[ClausKlein]

i.e. ==> ./_deps/catch2-src/CMake/Catch2Config.cmake.in <==

@PACKAGE_INIT@

# Avoid repeatedly including the targets
if(NOT TARGET Catch2::Catch2)
    # Provide path for scripts
    list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}")

    include(${CMAKE_CURRENT_LIST_DIR}/Catch2Targets.cmake)
endif()