EBEAST: Makefile.mk: upgrade to Electron-10
EBEAST: Makefile.mk: upgrade to Electron-10

Atm, electron@10 provides Electron-10.1.1, Chrome-85, Nodejs-12.16 and V8-8.5.

Signed-off-by: Tim Janik <6ec6ff229c4e1c5bbd5933ee92e6c5832ff023bb@gnu.org>

tim-janik/beast,tim-janik/beast,swesterfeld/beast,swesterfeld/beast,tim-janik/beast,tim-janik/beast,tim-janik/beast,tim-janik/beast,swesterfeld/beast,swesterfeld/beast,tim-janik/beast,swesterfeld/beast,swesterfeld/beast,swesterfeld/beast