Close PdfParser if error occurs during init (#9539)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Author: radarhere

src/PIL/PdfParser.py

@@ -402,7 +402,11 @@ def __init__(
         self.pages_ref: IndirectReference | None
         self.last_xref_section_offset: int | None
         if self.buf:
-            self.read_pdf_info()
+            try:
+                self.read_pdf_info()
+            except PdfFormatError:
+                self.close()
+                raise
         else:
             self.file_size_total = self.file_size_this = 0
             self.root = PdfDict()