fix: test case PyPDF2 (#35652)

fix: test case
diff --git a/erpnext/regional/report/irs_1099/irs_1099.py b/erpnext/regional/report/irs_1099/irs_1099.py
index 66ade1f..c5d8112 100644
--- a/erpnext/regional/report/irs_1099/irs_1099.py
+++ b/erpnext/regional/report/irs_1099/irs_1099.py
@@ -10,7 +10,7 @@
 from frappe.utils.jinja import render_template
 from frappe.utils.pdf import get_pdf
 from frappe.utils.print_format import read_multi_pdf
-from PyPDF2 import PdfWriter
+from pypdf import PdfWriter
 
 from erpnext.accounts.utils import get_fiscal_year