fix clippy warnings

Signed-off-by: Alex Chi Z <chi@neon.tech>

pageserver/benches/upload_queue.rs

@@ -45,6 +45,7 @@ fn bench_upload_queue_next_ready(c: &mut Criterion) {
             shard: ShardIndex::new(ShardNumber(1), ShardCount(2)),
             generation: Generation::Valid(1),
             file_size: 0,
+            encrypted_with_key_version: None,
         };
 
         // Construct the (initial and uploaded) index with layer0.

pageserver/src/tenant/remote_timeline_client/index.rs

@@ -253,7 +253,7 @@ pub struct LayerFileMetadata {
     pub shard: ShardIndex,
 
     #[serde(skip_serializing_if = "Option::is_none", default)]
-    pub(crate) encrypted_with_key_version: Option<u32>,
+    pub encrypted_with_key_version: Option<u32>,
 }
 
 impl LayerFileMetadata {