* contracts: optimize `L1Block.setL1BlockValues`

The amount of gas required to update the
L1 block values can be reduced by ~5000 gas by tightly
packing the `uint64`s into a single storage slot.
This is important because there will be a single
transaction at the beginning of each block that will
be updating these values. ~100 gas is saved by using
yul instead of straight solidity. I don't feel like the
yul is particularly difficult to read in this context,
and saving 100 gas per block will add up to a lot over
the history of the chain. This logic is covered by foundry
fuzzing.

* op-bindings: regenerate