astro/mepo: unbreak build after 91552559ae79
src/main.zig:15:13: error: encountered @panic at comptime
@panic("Must be built against Zig 0.10.0");
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~referenced by:
comptime_0: /usr/local/lib/zig/std/start.zig:59:50 remaining reference traces hidden; use '-freference-trace' to see all reference traces