lqt: fix effect hash calculation (#5075)

## Describe your changes

Seems like the effect hash calculation for LQT votes was wrong, in that
it erroneously included the authorization data and proof, which would
make such actions effectively impossible to construct.

This corrects things so that the effect hash is only calculated over the
actual body of the vote.

Testing deferred.

## Checklist before requesting a review

- [x] I have added guiding text to explain how a reviewer should test
these changes.

- [x] If this code contains consensus-breaking changes, I have added the
"consensus-breaking" label. Otherwise, I declare my belief that there
are not consensus-breaking changes, for the following reason:

> This breaks consensus not only with main, but also with the
tentatively applied testnet upgrade 😬

crates/core/component/funding/src/liquidity_tournament/action/mod.rs

@@ -96,6 +96,12 @@ impl From<LiquidityTournamentVoteBody> for pb::LiquidityTournamentVoteBody {
     }
 }
 
+impl EffectingData for LiquidityTournamentVoteBody {
+    fn effect_hash(&self) -> EffectHash {
+        EffectHash::from_proto_effecting_data(&self.to_proto())
+    }
+}
+
 /// The action used to vote in the liquidity tournament.
 ///
 /// This vote is towards a particular asset whose liquidity should be incentivized,
@@ -148,7 +154,7 @@ impl From<ActionLiquidityTournamentVote> for pb::ActionLiquidityTournamentVote {
 
 impl EffectingData for ActionLiquidityTournamentVote {
     fn effect_hash(&self) -> EffectHash {
-        EffectHash::from_proto_effecting_data(&self.to_proto())
+        self.body.effect_hash()
     }
 }