Notebook Variables aria label doesn't update

[alexr00]

Not updating for me.

can repro with jupyter and python extensions and setting "notebook.variablesView": true,

1. set a variable in a notebook, set a variable in a native python repl (Python: start native python REPL)
2. with the debug sidebar open, the "notebook variables" tree view will change to "REPL variables" depending on which editor is focused
3. Narration always reads "Notebook Variables"

treeview.title.mp4

Originally posted by @amunger in #239375