[KGA-49]: fix OOB read in parse_storage_keys on malformed inputs

[enitrat]

Fixes an issue where parsing malformed access lists could have undefined behavior due to OOB reads. This had no impact on the protocol whatsoever and could only discard the benefits from eip2930

[notion-workspace]

Out-of-Bounds Read in parse_storage_keys Function

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.7%. Comparing base (4a63a66) to head (2eb8cef).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #1627     +/-   ##
=======================================
- Coverage   63.9%   63.7%   -0.2%     
=======================================
  Files         44      44             
  Lines       8363    8367      +4     
=======================================
- Hits        5349    5337     -12     
- Misses      3014    3030     +16     

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