Function insert_post_block_withdrawals_balance_increments

pub fn insert_post_block_withdrawals_balance_increments(
    spec: impl EthereumHardforks,
    block_timestamp: u64,
    withdrawals: Option<&[Withdrawal]>,
    balance_increments: &mut HashMap<Address, u128, RandomState>,
)

Applies all withdrawal balance increments if shanghai is active at the given timestamp to the given balance_increments map.

Zero-valued withdrawals are filtered out.