openpyxl: Type usages of PIL and zipfile (#10706)

stubs/openpyxl/@tests/stubtest_allowlist.txt

@@ -41,8 +41,9 @@ openpyxl\.descriptors\.(base\.)?MinMax\.allow_none
 openpyxl\.descriptors\.(base\.)?String\.allow_none
 openpyxl\.descriptors\.(base\.)?Typed\.allow_none
 
-# "has a default value but stub argument does not"
-# Runtime has default arguments that would fail
+# Inconsistent methods because
+# - using the default value results in an error because of the runtime type-guards
+# - or, keyword arguments are explicitly specified
 openpyxl.cell.text.PhoneticProperties.__init__
 openpyxl.cell.text.PhoneticText.__init__
 openpyxl.chart.axis._BaseAxis.__init__
@@ -110,6 +111,7 @@ openpyxl.drawing.text.PresetTextShape.__init__
 openpyxl.drawing.text.TextField.__init__
 openpyxl.drawing.text.TextNormalAutofit.__init__
 openpyxl.formatting.rule.DataBar.__init__
+openpyxl.packaging.relationship.get_rel
 openpyxl.packaging.relationship.Relationship.__init__
 openpyxl.packaging.workbook.ChildSheet.__init__
 openpyxl.packaging.workbook.PivotCache.__init__