Add missing -MYSQL_TYPE_BLOB case in numpy sizing pass

The negated binary blob case list in load_rowdat_1_numpy's sizing pass
omitted -MYSQL_TYPE_BLOB while including the other three blob types.
The data output pass already handled all four. This mismatch caused
columns with negated MYSQL_TYPE_BLOB to fall through the sizing switch
unhandled, leading to incorrect data pointer advancement and corrupted
parsing.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: kesmit13

accel.c

@@ -2457,6 +2457,7 @@ static PyObject *load_rowdat_1_numpy(PyObject *self, PyObject *args, PyObject *k
             case -MYSQL_TYPE_TINY_BLOB:
             case -MYSQL_TYPE_MEDIUM_BLOB:
             case -MYSQL_TYPE_LONG_BLOB:
+            case -MYSQL_TYPE_BLOB:
                 CHECKSIZE(8);
                 item_sizes[i] = 8;
                 data_formats[i] = "Q";