Fix 1.89 clippy warnings (#2055)

* Fix 1.89 clippy warnings

* WASM lightclient clippy fixes too

core/src/blocks/extrinsics.rs

@@ -279,7 +279,7 @@ where
     }
 
     /// Fetch the metadata for this extrinsic.
-    pub fn extrinsic_metadata(&self) -> Result<ExtrinsicMetadataDetails, Error> {
+    pub fn extrinsic_metadata(&self) -> Result<ExtrinsicMetadataDetails<'_>, Error> {
         let pallet = self.metadata.pallet_by_index_err(self.pallet_index())?;
         let variant = pallet
             .call_variant_by_index(self.variant_index())