Fix build on Apple Silicon or maybe Apple-clang-14.0

The compiler complains that there's no matching
gnc_register_number_range_option for GncOptionDB*, which without this
commit is true because the explicit templates are for GncOptionDBPtr&.
Note that the original template definition is for GncOptionDB* and
that the header-defined inlines that take GncOptionDBPtr& call the
GncOptionDB* version.

libgnucash/engine/gnc-optiondb.cpp

@@ -1312,11 +1312,11 @@ gnc_option_db_lookup_qofinstance_value(GncOptionDB* odb, const char* section,
 }
 
 // Force creation of templates
-template void gnc_register_number_range_option(GncOptionDBPtr& db,
+template void gnc_register_number_range_option(GncOptionDB* db,
                                       const char* section, const char* name,
                                       const char* key, const char* doc_string,
                                       int value, int min, int max, int step);
-template void gnc_register_number_range_option(GncOptionDBPtr& db,
+template void gnc_register_number_range_option(GncOptionDB* db,
                                       const char* section, const char* name,
                                       const char* key, const char* doc_string,
                                       double value, double min,