feat: add dynamic pricing to the execution of cairo calls

[enitrat]

Currently, calling a cairo contract has a fixed 10k gas price. Considering that this can become a big portion of kakarot's usage (evm wallets + starknet dapps), we should also introduce a dynamic gas pricing that depends on the size of the calldata; because this calldata will need to be packed in 31-bytes felts.

[ooochoche]

@enitrat I would love to work on this

[ShantelPeters]

Hello @enitrat please can i be assigned to this issue

[Eikix]

Adding this to next sprint, if and only if mitigation reviews are done.