chore: Upgrade less
chore: Upgrade less

We used to avoid less v3.12 because of a bug, but it seems to be fixed
in less v3.13.

Change-Id: I83a517cec264d4f00af5e1ff31e9be68d5cef2e1

tvoli/shaka-player,tvoli/shaka-player,tvoli/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player