update scalachess to 10.1.5 (fixes #7686)
update scalachess to 10.1.5 (fixes #7686)

for https://github.com/ornicar/scalachess/commit/260134ac8f9a5ccff725983a1f983a0eb419d1eb

arex1337/lila,luanlv/lila,luanlv/lila,arex1337/lila,arex1337/lila,luanlv/lila,arex1337/lila,arex1337/lila,arex1337/lila,arex1337/lila,luanlv/lila,luanlv/lila,luanlv/lila,luanlv/lila