perf: use VirtualMachine::load_data at initialization

[Oppen]

The CairoRunner::initialize_state was using SegmentManager::load_data to load
the code rather than VirtualMachine::load_data. The latter contains an optimization
for the instruction cache, where it gets resized when loading the segment 0,
saving us from many reallocations during the main loop.
Running transactions 68000-68500 with Pathfinder shows a 9% speed improvement.

Checklist

• This change requires new documentation.
  • CHANGELOG has been updated.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0a39534) 97.12% compared to head (768bdc3) 97.12%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1441      +/-   ##
==========================================
- Coverage   97.12%   97.12%   -0.01%     
==========================================
  Files          91       91              
  Lines       37246    37245       -1     
==========================================
- Hits        36176    36175       -1     
  Misses       1070     1070              

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[github-actions]

Benchmark Results for unmodified programs 🚀

Command	Mean [s]	Min [s]	Max [s]	Relative
base big_factorial	2.258 ± 0.013	2.235	2.285	1.00
head big_factorial	2.267 ± 0.011	2.254	2.291	1.00 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base big_fibonacci	2.249 ± 0.013	2.222	2.266	1.00
head big_fibonacci	2.250 ± 0.018	2.230	2.293	1.00 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base blake2s_integration_benchmark	8.230 ± 0.066	8.163	8.335	1.00 ± 0.01
head blake2s_integration_benchmark	8.195 ± 0.045	8.153	8.288	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base compare_arrays_200000	2.307 ± 0.015	2.283	2.326	1.00 ± 0.01
head compare_arrays_200000	2.306 ± 0.020	2.286	2.358	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base dict_integration_benchmark	1.455 ± 0.005	1.449	1.467	1.01 ± 0.01
head dict_integration_benchmark	1.444 ± 0.006	1.438	1.460	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base field_arithmetic_get_square_benchmark	1.294 ± 0.010	1.285	1.319	1.00 ± 0.01
head field_arithmetic_get_square_benchmark	1.292 ± 0.007	1.285	1.306	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base integration_builtins	8.269 ± 0.066	8.186	8.348	1.00
head integration_builtins	8.298 ± 0.177	8.196	8.786	1.00 ± 0.02

Command	Mean [s]	Min [s]	Max [s]	Relative
base keccak_integration_benchmark	8.542 ± 0.055	8.473	8.613	1.00
head keccak_integration_benchmark	8.546 ± 0.085	8.438	8.725	1.00 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base linear_search	2.326 ± 0.007	2.313	2.336	1.00
head linear_search	2.336 ± 0.022	2.313	2.389	1.00 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base math_cmp_and_pow_integration_benchmark	1.583 ± 0.010	1.567	1.607	1.00 ± 0.01
head math_cmp_and_pow_integration_benchmark	1.580 ± 0.010	1.572	1.606	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base math_integration_benchmark	1.432 ± 0.007	1.424	1.442	1.00
head math_integration_benchmark	1.442 ± 0.004	1.436	1.447	1.01 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base memory_integration_benchmark	1.253 ± 0.004	1.247	1.258	1.00
head memory_integration_benchmark	1.260 ± 0.005	1.255	1.268	1.01 ± 0.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base operations_with_data_structures_benchmarks	1.617 ± 0.008	1.605	1.634	1.00 ± 0.01
head operations_with_data_structures_benchmarks	1.610 ± 0.006	1.603	1.620	1.00

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
base pedersen	604.2 ± 0.9	602.1	604.9	1.00 ± 0.00
head pedersen	603.9 ± 0.8	603.0	605.4	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base poseidon_integration_benchmark	1.067 ± 0.003	1.062	1.071	1.00
head poseidon_integration_benchmark	1.067 ± 0.007	1.057	1.084	1.00 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base secp_integration_benchmark	1.934 ± 0.010	1.922	1.957	1.00
head secp_integration_benchmark	1.938 ± 0.007	1.930	1.950	1.00 ± 0.01

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
base set_integration_benchmark	753.2 ± 1.5	751.7	755.7	1.00
head set_integration_benchmark	753.5 ± 2.1	750.6	758.6	1.00 ± 0.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base uint256_integration_benchmark	4.527 ± 0.017	4.505	4.553	1.00
head uint256_integration_benchmark	4.548 ± 0.032	4.511	4.596	1.00 ± 0.01