GDScript: Fix Callable call error text

modules/gdscript/tests/scripts/runtime/errors/callable_call_invalid_arg_type.gd

@@ -0,0 +1,3 @@
+#debug-only
+func test():
+	print(load.bind([]).call())

modules/gdscript/tests/scripts/runtime/errors/callable_call_invalid_arg_type.out

@@ -0,0 +1,2 @@
+GDTEST_RUNTIME_ERROR
+>> SCRIPT ERROR at runtime/errors/callable_call_invalid_arg_type.gd:3 on test(): Invalid type in function '@GDScript::load (Callable)'. Cannot convert argument 1 from Array to String.

modules/gdscript/tests/scripts/runtime/features/utility_func_as_callable.out

@@ -1,6 +1,6 @@
 GDTEST_OK
-@GlobalScope::print (Callable)
-@GDScript::len (Callable)
+@GlobalScope::print
+@GDScript::len
 1 2 3
 1
 3