fix(EOF): retf gas was changes

[rakita]

ipsilon/eof#80 change is here

[github-actions]

Valgrind Results:

==3826== Cachegrind, a cache and branch-prediction profiler
==3826== Copyright (C) 2002-2017, and GNU GPL'd, by Nicholas Nethercote et al.
==3826== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info
==3826== Command: target/release/snailtracer
==3826== 
--3826-- warning: L3 cache found, using its data for the LL simulation.
Running snailtracer example!
elapsed: 1.828351648s
==3826== 
==3826== I   refs:      430,648,475
==3826== I1  misses:          3,378
==3826== LLi misses:          2,814
==3826== I1  miss rate:        0.00%
==3826== LLi miss rate:        0.00%
==3826== 
==3826== D   refs:      202,359,444  (131,535,027 rd   + 70,824,417 wr)
==3826== D1  misses:        341,481  (    201,689 rd   +    139,792 wr)
==3826== LLd misses:        137,821  (      4,329 rd   +    133,492 wr)
==3826== D1  miss rate:         0.2% (        0.2%     +        0.2%  )
==3826== LLd miss rate:         0.1% (        0.0%     +        0.2%  )
==3826== 
==3826== LL refs:           344,859  (    205,067 rd   +    139,792 wr)
==3826== LL misses:         140,635  (      7,143 rd   +    133,492 wr)
==3826== LL miss rate:          0.0% (        0.0%     +        0.2%  )