Don't use polling to check for shell integration

[anthonykim1]

vscode-python-environments/src/features/terminal/utils.ts

Lines 27 to 33 in 8b4281e

	/**
	* Three conditions in a Promise.race:
	* 1. Timeout based on VS Code's terminal.integrated.shellIntegration.timeout setting
	* 2. Shell integration becoming available (window.onDidChangeTerminalShellIntegration event)
	* 3. Detection of common prompt patterns in terminal output
	*/
	export async function waitForShellIntegration(terminal: Terminal): Promise<boolean> {

is much better.