pythongh-123974: Fix time.get_clock_info() on NetBSD (python#123975)

Fix OSError for thread_time clock on NetBSD by setting default resolution.

Modules/timemodule.c

@@ -1509,15 +1509,19 @@ _PyTime_GetThreadTimeWithInfo(PyTime_t *tp, _Py_clock_info_t *info)
         return -1;
     }
     if (info) {
-        struct timespec res;
         info->implementation = function;
         info->monotonic = 1;
         info->adjustable = 0;
+    #if defined(__NetBSD__)
+        info->resolution = 1e-9;
+    #else
+        struct timespec res;
         if (clock_getres(clk_id, &res)) {
             PyErr_SetFromErrno(PyExc_OSError);
             return -1;
         }
         info->resolution = res.tv_sec + res.tv_nsec * 1e-9;
+    #endif
     }
 
     if (_PyTime_FromTimespec(tp, &ts) < 0) {