fix: Use correct base fee params for Base mainnet after canyon hardfork #9600
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Fixes the base fee calculation for Base Mainnet after the Canyon hardfork is activated, by using the
optimism_canyon
BaseFeeParams
instead of the pre-canyonoptimism
params.See the following reference data in the superchain registry: https://github.com/ethereum-optimism/superchain-registry/blob/c01722001e88a8d21a6450f89bb7bb42311c9609/bindings/rust-primitives/src/rollup_config.rs#L386