Slippage query in repo is missing fix for fee withdrawals

[fhenneke]

There was a bug related to the protocol being a trader which meant that mint (or burn?) events were ignored.

The fix which is deployed on Dune is to change

solver-rewards/queries/dune_v2/period_slippage.sql

Lines 30 to 35 in 9577798

	b.block_number,
	case
	when trader = 0x9008d19f58aabd9ed0d60971565aa8510560ab41
	then 0x0000000000000000000000000000000000000000
	else trader
	end as trader_in,

to a different address 0x0000000000000000000000000000000000000001.

This change is not currently present in the query under version control.

[fhenneke]

Closed by #369