[3.12] gh-104496: Use correct Tcl or Tk version in Tkinter tests (GH-107688) (#107709)

gh-104496: Use correct Tcl or Tk version in Tkinter tests (GH-107688)

In future Tcl and Tk versions can be desynchronized.
(cherry picked from commit 3c8e8f3ceeae08fc43d885f5a4c65a3ee4b1a2c8)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>