Fix some new clippy warnings

Author: thomaskrause

core/src/annostorage/ondisk.rs

@@ -364,7 +364,7 @@ where
         let item_smaller_than_largest = self
             .largest_item
             .as_ref()
-            .map_or(true, |largest_item| item <= *largest_item);
+            .is_none_or(|largest_item| item <= *largest_item);
         let already_existed =
             item_smaller_than_largest && self.by_container.contains_key(&by_container_key)?;
         self.by_container

core/src/util/disk_collections.rs

@@ -216,7 +216,7 @@ where
                 return Ok(Box::new(it));
             }
         } else if let Some(c2) = &self.c2 {
-            if self.c0.is_empty() && self.c1.as_ref().map_or(true, |c1| c1.is_empty()) {
+            if self.c0.is_empty() && self.c1.as_ref().is_none_or(|c1| c1.is_empty()) {
                 let table_iterator = c2.iter();
                 let it = SingleTableIterator {
                     table_iterator,
@@ -257,7 +257,7 @@ where
                 return Box::new(it);
             }
         } else if let Some(c2) = &self.c2 {
-            if self.c0.is_empty() && self.c1.as_ref().map_or(true, |c1| c1.is_empty()) {
+            if self.c0.is_empty() && self.c1.as_ref().is_none_or(|c1| c1.is_empty()) {
                 let mapped_start_bound: std::ops::Bound<KeyVec> = match range.start_bound() {
                     Bound::Included(end) => Bound::Included(K::create_key(end)),
                     Bound::Excluded(end) => Bound::Excluded(K::create_key(end)),