freecad@1.1.1_py313_qt6: update test block to specify path for user.cfg and system.cfg

Author: ipatch

Formula/freecad@1.1.1_py313_qt6.rb

@@ -526,6 +526,11 @@ def caveats
 
   test do
     freecadcmd = OS.mac? ? prefix/"MacOS/FreeCADCmd" : bin/"FreeCADCmd"
+    with_env(HOME: testpath, TMPDIR: testpath) do
+      system freecadcmd, "-u", testpath/"user.cfg",
+        "-s", testpath/"system.cfg",
+        "-t", "0"
+    end
     system freecadcmd, "-t", "0"
   end
 end