DEV: Update Pillow to 12.1.1 (#3639)

Author: stefan6419846

requirements/ci-3.11.txt

@@ -30,7 +30,7 @@ mypy-extensions==1.0.0
     # via mypy
 packaging==24.1
     # via pytest
-pillow==12.1.0
+pillow==12.1.1
     # via
     #   -r requirements/ci.in
     #   fpdf2

requirements/dev.txt

@@ -43,7 +43,7 @@ packaging==24.1
     #   build
     #   pytest
     #   wheel
-pillow==11.3.0
+pillow==12.1.1
     # via -r dev.in
 pip-tools==7.4.1
     # via -r dev.in