Use new macro for fetching dep

Author: bakpaul

CMakeLists.txt

@@ -21,12 +21,10 @@ find_package(Sofa.Component.LinearSolver.Direct REQUIRED)
 find_package(metis 5.1.0 EXACT QUIET)
 if(NOT metis_FOUND AND SOFA_ALLOW_FETCH_DEPENDENCIES)
     message("Sofa.Metis: DEPENDENCY metis NOT FOUND. SOFA_ALLOW_FETCH_DEPENDENCIES is ON, fetching metis...")
-    include(FetchContent)
-    FetchContent_Declare(metis
+    sofa_fetch_dependency(metis
             GIT_REPOSITORY https://github.com/sofa-framework/METIS
             GIT_TAG v5.1.0-ModernInstall
     )
-    FetchContent_MakeAvailable(metis)
 elseif (NOT metis_FOUND)
     message(FATAL_ERROR "Sofa.Metis: DEPENDENCY metis NOT FOUND. SOFA_ALLOW_FETCH_DEPENDENCIES is OFF and thus cannot be fetched. Install metis (version=5.1.0), or enable SOFA_ALLOW_FETCH_DEPENDENCIES to fix this issue.")
 endif()