Fix grandpa e2e tests

[crodriguezvega]

The grandpa e2e tests have started to fail.

[damiannolan]

I suspect removing the non-hex encoded event attributes in #6023 has something to do with this. Assuming that this test users hyperspace relayer its possible that they do not use the hex encoded event attributes.

[damiannolan]

Hex encoded event attirbutes are not used.

https://github.com/ComposableFi/composable-ibc/blob/master/hyperspace/cosmos/src/events.rs#L526-L531
https://github.com/ComposableFi/composable-ibc/blob/master/ibc/modules/src/core/ics04_channel/events.rs#L43

opened: ComposableFi/composable-ibc#494

[crodriguezvega]

yay, nice find, @damiannolan! Thank you also for opening the issue in composable-ibc.

[navyxie]

look nice

[DimitrisJim]

ah yes, we use yet another relayer here. I'll see if this is an easy lift to fix in hyperspace.