chore: precompile bn128 copy

[rakita]

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[github-actions]

Valgrind Results:

==4029== Cachegrind, a cache and branch-prediction profiler
==4029== Copyright (C) 2002-2017, and GNU GPL'd, by Nicholas Nethercote et al.
==4029== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info
==4029== Command: target/release/snailtracer
==4029== 
--4029-- warning: L3 cache found, using its data for the LL simulation.
Snailtracer Host+Interpreter benchmark (2.0s) ...            not enough samples
==4029== 
==4029== I   refs:      471,787,642
==4029== I1  misses:          3,410
==4029== LLi misses:          2,899
==4029== I1  miss rate:        0.00%
==4029== LLi miss rate:        0.00%
==4029== 
==4029== D   refs:      229,164,867  (152,346,384 rd   + 76,818,483 wr)
==4029== D1  misses:        322,953  (    183,137 rd   +    139,816 wr)
==4029== LLd misses:        137,538  (      4,060 rd   +    133,478 wr)
==4029== D1  miss rate:         0.1% (        0.1%     +        0.2%  )
==4029== LLd miss rate:         0.1% (        0.0%     +        0.2%  )
==4029== 
==4029== LL refs:           326,363  (    186,547 rd   +    139,816 wr)
==4029== LL misses:         140,437  (      6,959 rd   +    133,478 wr)
==4029== LL miss rate:          0.0% (        0.0%     +        0.2%  )