v0.13.0

Starknet

• Add transaction v3:
  • Fee payment in STRK
  • Reserved fields for future features, such as volition and payment master
• get_block API: Rename the gas_price field to eth_l1_gas_price and add a new field strk_l1_gas_price (this applies to old blocks as well)
• Update Sierra version used in Starknet to 1.4.0 (introduced in crate version v2.4.0 of the cairo package)
• Improved performance of secp256k1_mul and secp256r1_mul syscalls