chore: bump unstructured-inference=0.7.21 (#2361)

Author: christinestraub

Diff for: requirements/extra-pdf-image.in

@@ -8,7 +8,7 @@ pikepdf
 pypdf
 # Do not move to contsraints.in, otherwise unstructured-inference will not be upgraded
 # when unstructured library is.
-unstructured-inference==0.7.18
+unstructured-inference==0.7.21
 # unstructured fork of pytesseract that provides an interface to allow for multiple output formats
 # from one tesseract call
 unstructured.pytesseract>=0.3.12

Diff for: requirements/extra-pdf-image.txt

@@ -250,7 +250,7 @@ typing-extensions==4.8.0
     #   torch
 tzdata==2023.3
     # via pandas
-unstructured-inference==0.7.18
+unstructured-inference==0.7.21
     # via -r extra-pdf-image.in
 unstructured-pytesseract==0.3.12
     # via