fix: restore SSN column in Monthly Absence Report

SSN stays in the report but is not populated into hissə_3.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

taxes_az/taxes_az/report/monthly_absence_report/monthly_absence_report.py

@@ -31,6 +31,12 @@ def get_columns():
 			"fieldtype": "Data",
 			"width": 110
 		},
+		{
+			"label": _("SSN"),
+			"fieldname": "ssn",
+			"fieldtype": "Data",
+			"width": 130
+		},
 	{
 			"label": _("Davamsızlığın səbəbi"),
 			"fieldname": "absent_reason",
@@ -55,6 +61,7 @@ def get_data(filters):
 			e.last_name,
 			e.first_name,
 e.passport_number AS fin,
+			e.ssn,
 			a.absent_reason,
 			COUNT(*) AS days_absent
 		FROM `tabAttendance` a