fix(clippy): use is_none_or instead of map_or

- use `is_non_or` instead of `map_or`
- update lifetime on `find_direct_anchor`

Author: oleonardolima

crates/chain/src/canonical_view.rs

@@ -93,8 +93,8 @@ impl<A: Anchor> CanonicalView<A> {
     where
         C: ChainOracle,
     {
-        fn find_direct_anchor<'g, A: Anchor, C: ChainOracle>(
-            tx_node: &TxNode<'g, Arc<Transaction>, A>,
+        fn find_direct_anchor<A: Anchor, C: ChainOracle>(
+            tx_node: &TxNode<'_, Arc<Transaction>, A>,
             chain: &C,
             chain_tip: BlockId,
         ) -> Result<Option<A>, C::Error> {

crates/chain/src/indexer/keychain_txout.rs

@@ -1058,7 +1058,7 @@ impl Merge for ChangeSet {
             debug_assert!(
                 orig_spks
                     .iter()
-                    .all(|(i, orig_spk)| spks.get(i).map_or(true, |spk| spk == orig_spk)),
+                    .all(|(i, orig_spk)| spks.get(i).is_none_or(|spk| spk == orig_spk)),
                 "spk of the same descriptor-id and derivation index must not be different"
             );
             orig_spks.extend(spks);