Fix randomized shell integration decoration bug for Windows pwsh

[anthonykim1]

Reference: #22535 microsoft/vscode#199770
This would be making changes in vscode repository for shell integration to get better sense of Python REPL '>>>' prompt.

[anthonykim1]

Attempted to fix by defining Python prompt

		const pythonPrompt = lineText.match(/^(?<prompt>>>> )/g)?.groups?.prompt;
		if (pythonPrompt) {
			return {
				prompt: pythonPrompt,
				likelySingleLine: true
			};
		}

in vscode's commandDetectionCapability, but still getting colorless bubbles. Opting into windows heuristic from the Python extension side and defining Python prompt seemed to make the decoration less randomized, but still getting colorless decoration for Windows pwsh users.