Consider using exact gas costs as per EIP for BLS precompiles calls.

[AnomalRoil]

Since we know the pre-compiles costs from the EIPs, and since the precompiles burns all the extra gas we gave it in case the pre-compiles fails, we might want to use exact numbers for the precompiles calls in staticcall instead of gas().

[bbjubjub2494]

The problem is that Ethereum reserves the right to change the gas schedule and sometimes does, (e.g. in EIP-1108 or EIP-7667) so this would introduce an assumption that can broken if the gas costs are increased. Given the current Ethereum roadmap, this seems likely. In particular, modexp, which we are using, will be impacted by EIP-7883.