iosevka-bin: 1.14.3 -> 2.0.0 (#45407)

"iosevka" needs some work to update to 2.0.0
(config file must be used instead of arguments to make)
but don't know that the two necessarily need to be at the same version.

Also I "think" that using the 'ttc' zip is the equivalent of what
was previously the "pack" but noting this here since haven't found
this documented elsewhere and am not entirely sure.