fix(ci): fix missing trailing newlines in validator-pool files (fmt)

bash command substitution strips trailing newlines; restored them.

pezkuwi/pezpallets/validator-pool/src/benchmarking.rs

@@ -144,4 +144,4 @@ mod benchmarks {
 	}
 
 	impl_benchmark_test_suite!(Pezpallet, crate::mock::new_test_ext(), crate::mock::Test);
-}
+}

pezkuwi/pezpallets/validator-pool/src/lib.rs

@@ -1164,4 +1164,4 @@ pub mod pezpallet {
 			);
 		}
 	}
-}
+}

pezkuwi/pezpallets/validator-pool/src/mock.rs

@@ -276,4 +276,4 @@ pub fn merit_validator_category() -> ValidatorPoolCategory {
 		special_tikis: vec![1u8].try_into().unwrap(), // Mock tiki type
 		community_threshold: 500,
 	}
-}
+}

pezkuwi/pezpallets/validator-pool/src/tests.rs

@@ -803,4 +803,4 @@ fn shadow_mode_tracks_activation_block() {
 		assert!(since.is_some());
 		assert_eq!(since.unwrap(), 100);
 	});
-}
+}

pezkuwi/pezpallets/validator-pool/src/types.rs

@@ -307,4 +307,4 @@ pub struct CategoryDistribution {
 	pub target_parliamentary: u8,
 	/// Target merit count
 	pub target_merit: u8,
-}
+}