fix: initialize VM; call System.initPhase2() and System.initPhase3()

[brianheineman]

No description provided.

[github-actions]

Bencher Report

Branch	initialize-vm
Testbed	localhost

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Benchmark	Latency	nanoseconds (ns)
from_bytes	📈 view plot ⚠️ NO THRESHOLD	24,268.00
load_hash_map	📈 view plot ⚠️ NO THRESHOLD	32,359.00
load_invalid_class	📈 view plot ⚠️ NO THRESHOLD	30,559.00
runtime_v11	📈 view plot ⚠️ NO THRESHOLD	60,842,000.00
runtime_v17	📈 view plot ⚠️ NO THRESHOLD	59,239,000.00
runtime_v21	📈 view plot ⚠️ NO THRESHOLD	63,105,000.00
runtime_v8	📈 view plot ⚠️ NO THRESHOLD	47,771,000.00
to_bytes	📈 view plot ⚠️ NO THRESHOLD	21,733.00
to_string	📈 view plot ⚠️ NO THRESHOLD	187,460.00
verify	📈 view plot ⚠️ NO THRESHOLD	930.41

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[codecov]

Codecov Report

Attention: Patch coverage is 91.17647% with 6 lines in your changes missing coverage. Please review.

Project coverage is 96.19%. Comparing base (747ffc9) to head (bd55476).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
ristretto_vm/src/vm.rs	72.72%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #127      +/-   ##
==========================================
+ Coverage   96.10%   96.19%   +0.08%     
==========================================
  Files         143      144       +1     
  Lines       26793    26858      +65     
==========================================
+ Hits        25750    25836      +86     
+ Misses       1043     1022      -21     

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