Get the correct computed tb lineno

Fix for python/cpython#109181 introduced
lazily computed lineno for traceback object in 3.11.7 and 3.12.1.
Tested in a number of Python versions, the change seems to be safe.

src/main/c/jni/org_jpy_PyLib.c

@@ -2667,7 +2667,7 @@ void PyLib_RedirectStdOut(void)
 
 
 static const int PYLIB_RECURSIVE_CUTOFF = 3;
-#define PyLib_TraceBack_LIMIT 1024 
+#define PyLib_TraceBack_LIMIT 1024
 
 static PyObject *format_displayline(PyObject *filename, int lineno, PyObject *name)
 {
@@ -2730,6 +2730,13 @@ static int append_to_java_message(PyObject * pyObjUtf8, char **buf, int *bufLen
  return 0;
 }
 
+static int get_traceback_lineno(PyTracebackObject *tb) {
+ PyObject* po_lineno = PyObject_GetAttrString((PyObject*)tb, "tb_lineno");
+ int lineno = (int)PyLong_AsLong(po_lineno);
+ JPy_DECREF(po_lineno);
+ return lineno;
+}
+
 static int format_python_traceback(PyTracebackObject *tb, char **buf, int *bufLen)
 {
  int err = 0;
@@ -2754,7 +2761,7 @@ static int format_python_traceback(PyTracebackObject *tb, char **buf, int *bufLe
  PyCodeObject* co = PyFrame_GetCode(tb->tb_frame);
  if (last_file == NULL ||
  co->co_filename != last_file ||
- last_line == -1 || tb->tb_lineno != last_line ||
+ last_line == -1 || get_traceback_lineno(tb) != last_line ||
  last_name == NULL || co->co_name != last_name) {
  if (cnt > PYLIB_RECURSIVE_CUTOFF) {
  pyObjUtf8 = format_line_repeated(cnt);
@@ -2765,15 +2772,15 @@ static int format_python_traceback(PyTracebackObject *tb, char **buf, int *bufLe
  }
  }
  last_file = co->co_filename;
- last_line = tb->tb_lineno;
+ last_line = get_traceback_lineno(tb);
  last_name = co->co_name;
  cnt = 0;
  }
  cnt++;
  if (err == 0 && cnt <= PYLIB_RECURSIVE_CUTOFF) {
  pyObjUtf8 = format_displayline( 
  co->co_filename,
- tb->tb_lineno,
+ get_traceback_lineno(tb),
  co->co_name);
  err = append_to_java_message(pyObjUtf8, buf, bufLen);
  if (err != 0) {