chore(deps): update dependency pillow to v12.3.0 (#453)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

requirements.txt

@@ -2,7 +2,7 @@ crispy-bootstrap3==2024.1
 Django==5.2.15
 django-crispy-forms==2.6
 Markdown==3.10.2
-Pillow==12.2.0
+Pillow==12.3.0
 pygooglechart==0.4.0
 python-gammu==3.2.5
 rollbar==1.3.0