Can't stop notebook cell execution

[bamurtaugh]

Testing #186262

• Select Pyolite kernel from Pyodide extension
• Select Run All
• Try Stop Execution, 🐛 nothing happens, cell is still running
• Scroll down to the cell, select its specific stop button, 🐛 cell continues running
• If I reload VS Code, the cell stops executing

[roblourens]

It doesn't look like this is implemented by the Pyodide extension

vscode/src/vscode-dts/vscode.d.ts

Line 14207 in 4ddef94

readonly token: CancellationToken;