CheckEnvironmentCommand writes markup as literal text

[ArturDorochowicz]

Markup method should be used here instead of Write:

oakton/src/Oakton/Commands/CheckEnvironmentCommand.cs

Lines 36 to 40 in 0134fb9

	AnsiConsole.Write("[red]Some environment checks failed![/]");
	return false;
	}
	AnsiConsole.Write("[green]All environment checks are good![/]");