update pvm tests

[qiweiii]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 93.70629% with 45 lines in your changes missing coverage. Please review.

Project coverage is 85.66%. Comparing base (7d7820e) to head (c618f35).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
PolkaVM/Sources/PolkaVM/Memory.swift	94.32%	18 Missing ⚠️
...es/PolkaVM/Instructions/Instructions+Helpers.swift	75.92%	13 Missing ⚠️
PolkaVM/Sources/PolkaVM/VMState.swift	66.66%	8 Missing ⚠️
.../Blockchain/VMInvocations/HostCall/HostCalls.swift	0.00%	3 Missing ⚠️
PolkaVM/Sources/PolkaVM/Registers.swift	66.66%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #271      +/-   ##
==========================================
+ Coverage   80.77%   85.66%   +4.88%     
==========================================
  Files         304      304              
  Lines       24450    24660     +210     
==========================================
+ Hits        19750    21124    +1374     
+ Misses       4700     3536    -1164     

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