feat: Upgrade Python dependency pillow

Routine requirement upgrade.  Doing it individually because there are too many changes in `make upgrade`.

Commit generated by workflow `openedx/edx-platform/.github/workflows/upgrade-one-python-dependency.yml@refs/heads/master`

requirements/edx-sandbox/base.txt

@@ -58,7 +58,7 @@ openedx-calc==3.1.0
     # via -r requirements/edx-sandbox/base.in
 packaging==24.0
     # via matplotlib
-pillow==10.2.0
+pillow==10.3.0
     # via matplotlib
 pycparser==2.21
     # via cffi

requirements/edx/base.txt

@@ -834,7 +834,7 @@ pgpy==0.6.0
     # via edx-enterprise
 piexif==1.1.3
     # via -r requirements/edx/kernel.in
-pillow==10.2.0
+pillow==10.3.0
     # via
     #   -r requirements/edx/kernel.in
     #   edx-enterprise

requirements/edx/development.txt

@@ -1388,7 +1388,7 @@ piexif==1.1.3
     # via
     #   -r requirements/edx/doc.txt
     #   -r requirements/edx/testing.txt
-pillow==10.2.0
+pillow==10.3.0
     # via
     #   -r requirements/edx/doc.txt
     #   -r requirements/edx/testing.txt

requirements/edx/doc.txt

@@ -979,7 +979,7 @@ picobox==4.0.0
     # via sphinxcontrib-openapi
 piexif==1.1.3
     # via -r requirements/edx/base.txt
-pillow==10.2.0
+pillow==10.3.0
     # via
     #   -r requirements/edx/base.txt
     #   edx-enterprise

requirements/edx/testing.txt

@@ -1035,7 +1035,7 @@ pgpy==0.6.0
     #   edx-enterprise
 piexif==1.1.3
     # via -r requirements/edx/base.txt
-pillow==10.2.0
+pillow==10.3.0
     # via
     #   -r requirements/edx/base.txt
     #   edx-enterprise