utils: require pyside2 5.14.1
utils: require pyside2 5.14.1

Workarounds a regression introduced in pyside2 5.14.2 which makes the
node.gl viewer deadlock in various places.

gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl