chore: change build lang back to ES5
chore: change build lang back to ES5

stardazed/stardazed-tx,zenmumbler/stardazed-tx,zenmumbler/libzm,zenmumbler/stardazed-tx,stardazed/stardazed,zenmumbler/libzm,stardazed/stardazed,zenmumbler/libzm,stardazed/stardazed-tx,zenmumbler/libzm,zenmumbler/stardazed-tx,zenmumbler/stardazed-tx,stardazed/stardazed-tx