* The Toronto Stock Exchange's S&P/TSX rose 56.79 points, or 0.40 percent, to 14,222.00 to cap off a weekly gain of more than 2 percent, the best weekly performance since February. * Leading the index were Maxar Technologies Ltd, up 15.2 percent, Birchcliff Energy Ltd, up 12.9 percent, and Aphria Inc, which rose 12.6 percent after it said a C$2.8 billion ($2.06 billion) all-stock hostile bid by Green Growth Brands Ltd's "significantly" undervalued the company. * Lagg