Fix template.create argument parser signature

PyXmlSec_TemplateCreate still used the format string
`O&O!O!|zzz:create` and passed a third optional string argument,
even though `template.create()` only accepts two optional string
parameters: `id` and `ns`.

Update the parser to use `|zz:create` and remove the stray extra
`&id` argument so the C binding matches the Python API.

This fixes the runtime failure:

SystemError: more argument specifiers than keyword list entries
(remaining format:'z:create')

Author: mxamin

src/template.c

@@ -44,8 +44,8 @@ static PyObject* PyXmlSec_TemplateCreate(PyObject* self, PyObject *args, PyObjec
     xmlNodePtr res;
 
     PYXMLSEC_DEBUG("template create - start");
-    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O&O!O!|zzz:create", kwlist,
-        PyXmlSec_LxmlElementConverter, &node, PyXmlSec_TransformType, &c14n, PyXmlSec_TransformType, &sign, &id, &ns, &id))
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O&O!O!|zz:create", kwlist,
+        PyXmlSec_LxmlElementConverter, &node, PyXmlSec_TransformType, &c14n, PyXmlSec_TransformType, &sign, &id, &ns))
     {
         goto ON_FAIL;
     }