Represent version as a felt252

[mfachal]

Linked to issue #356 and related to PR 372

[codecov-commenter]

Codecov Report

Merging #615 (b56ee56) into main (f81fd3c) will increase coverage by 0.00%.
The diff coverage is 96.34%.

@@           Coverage Diff           @@
##             main     #615   +/-   ##
=======================================
  Coverage   92.18%   92.18%           
=======================================
  Files          50       50           
  Lines       10330    10331    +1     
=======================================
+ Hits         9523     9524    +1     
  Misses        807      807           

Impacted Files	Coverage Δ
src/business_logic/transaction/declare_v2.rs	84.83% <66.66%> (ø)
src/core/transaction_hash/mod.rs	78.40% <87.50%> (ø)
src/business_logic/execution/mod.rs	97.57% <100.00%> (ø)
src/business_logic/transaction/declare.rs	98.73% <100.00%> (ø)
src/business_logic/transaction/deploy.rs	98.63% <100.00%> (ø)
src/business_logic/transaction/deploy_account.rs	97.86% <100.00%> (ø)
src/business_logic/transaction/invoke_function.rs	99.27% <100.00%> (+<0.01%)	⬆️
src/lib.rs	92.13% <100.00%> (ø)
src/syscalls/business_logic_syscall_handler.rs	79.58% <100.00%> (ø)
src/syscalls/deprecated_syscall_handler.rs	98.97% <100.00%> (ø)
... and 1 more