[3.10] gh-107262: Update Tkinter tests for Tcl/Tk 8.6.14 (GH-119322)#130274

hugovk merged 3 commits intopython:3.10python/cpython:3.10from

miss-islington:backport-9732ed5-3.10miss-islington/cpython:backport-9732ed5-3.10Copy head branch name to clipboard