relax `XcmFeeToAccount` trait bound on `AccountId` #3994

Job	Run time
set-image	7s
check-runtime-migration (asset-hub-westend)	11m 6s
check-runtime-migration (asset-hub-rococo)	30m 21s
check-runtime-migration (bridge-hub-westend)	5m 11s
check-runtime-migration (bridge-hub-rococo)	5m 24s
check-runtime-migration (contracts-rococo)	9m 22s
check-runtime-migration (collectives-westend)	5m 14s
check-runtime-migration (coretime-rococo)	5m 30s
	1h 12m 15s

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