[xcm-builder] Replaced deprecated CurrencyAdapter with FungibleAdapter (#3287)

I found out during the cleanup of this deprecation message in the
`polkadot-fellows` repository that we deprecated `CurrencyAdapter`
without making the recommended changes.


## TODO
- [ ] fix `polkadot-fellows` bump to 1.6.0
https://github.com/polkadot-fellows/runtimes/pull/159

---------

Co-authored-by: Francisco Aguirre <franciscoaguirreperez@gmail.com>

bridges/snowbridge/runtime/test-common/src/lib.rs

@@ -188,6 +188,7 @@ pub fn send_transfer_token_message_success<Runtime, XcmConfig>(
 			let channel_id: ChannelId = origin.into();
 
 			let nonce = snowbridge_pallet_outbound_queue::Nonce::<Runtime>::try_get(channel_id);
+			dbg!(&nonce);
 			assert_ok!(nonce);
 			assert_eq!(nonce.unwrap(), 1);