Bump pillow from 5.0.0 to 9.0.0 in /Chapter09/Ch9/server#16

dependabot[bot] wants to merge 1 commit intomasterPacktPublishing/Tkinter-GUI-Programming-by-Example:masterfrom

dependabot/pip/Chapter09/Ch9/server/pillow-9.0.0PacktPublishing/Tkinter-GUI-Programming-by-Example:dependabot/pip/Chapter09/Ch9/server/pillow-9.0.0Copy head branch name to clipboard