style: fix rustfmt formatting in proposer_selector tests

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: qj0r9j0vc2

crates/consensus/src/proposer_selector.rs

@@ -490,8 +490,10 @@ mod tests {
         let selector_synced = ProposerSelector::new(&vs, ConsensusHeight(34));
 
         // Both query for the proposer at height 34, round 6
-        let proposer_genesis = selector_from_genesis.select_proposer(&vs, ConsensusHeight(34), Round::new(6));
-        let proposer_synced = selector_synced.select_proposer(&vs, ConsensusHeight(34), Round::new(6));
+        let proposer_genesis =
+            selector_from_genesis.select_proposer(&vs, ConsensusHeight(34), Round::new(6));
+        let proposer_synced =
+            selector_synced.select_proposer(&vs, ConsensusHeight(34), Round::new(6));
 
         assert_eq!(
             proposer_genesis.address, proposer_synced.address,
@@ -519,8 +521,17 @@ mod tests {
         let sync_h34_r1 = selector_synced.select_proposer(&vs, ConsensusHeight(34), Round::new(1));
         let sync_h34_r2 = selector_synced.select_proposer(&vs, ConsensusHeight(34), Round::new(2));
 
-        assert_eq!(gen_h34_r0.address, sync_h34_r0.address, "Must agree on round 0");
-        assert_eq!(gen_h34_r1.address, sync_h34_r1.address, "Must agree on round 1");
-        assert_eq!(gen_h34_r2.address, sync_h34_r2.address, "Must agree on round 2");
+        assert_eq!(
+            gen_h34_r0.address, sync_h34_r0.address,
+            "Must agree on round 0"
+        );
+        assert_eq!(
+            gen_h34_r1.address, sync_h34_r1.address,
+            "Must agree on round 1"
+        );
+        assert_eq!(
+            gen_h34_r2.address, sync_h34_r2.address,
+            "Must agree on round 2"
+        );
     }
 }