feat: Add Pillow library to project requirements

requirements.txt

@@ -216,6 +216,10 @@ pexpect==4.9.0
     # via
     #   -c requirements/common-constraints.txt
     #   -r requirements/requirements.in
+pillow==11.1.0
+    # via
+    #   -c requirements/common-constraints.txt
+    #   -r requirements/requirements.in
 pip==25.0.1
     # via
     #   -c requirements/common-constraints.txt

requirements/common-constraints.txt

@@ -275,6 +275,7 @@ pexpect==4.9.0
     # via -r requirements/requirements.in
 pillow==11.1.0
     # via
+    #   -r requirements/requirements.in
     #   llama-index-core
     #   matplotlib
     #   sentence-transformers

requirements/requirements.in

@@ -27,6 +27,7 @@ psutil
 watchfiles
 socksio
 pip
+pillow
 
 # The proper dependency is networkx[default], but this brings
 # in matplotlib and a bunch of other deps