Upgrade miniscript/bitcoin dependency

Upgrade:

- bitcoin to v0.31.0
- miniscript to v11.0.0

Note: The bitcoin upgrade includes improvements to the
`Transaction::weight()` function, it appears those guys did good, we
no longer need to add the 2 additional weight units "just in case".

crates/esplora/src/async_ext.rs

@@ -1,7 +1,7 @@
 use async_trait::async_trait;
 use bdk_chain::collections::btree_map;
 use bdk_chain::{
-    bitcoin::{BlockHash, OutPoint, ScriptBuf, TxOut, Txid},
+    bitcoin::{Amount, BlockHash, OutPoint, ScriptBuf, TxOut, Txid},
     collections::BTreeMap,
     local_chain::{self, CheckPoint},
     BlockId, ConfirmationTimeHeightAnchor, TxGraph,
@@ -228,7 +228,7 @@ impl EsploraAsyncExt for esplora_client::AsyncClient {
                                 },
                                 TxOut {
                                     script_pubkey: prevout.scriptpubkey.clone(),
-                                    value: prevout.value,
+                                    value: Amount::from_sat(prevout.value),
                                 },
                             ))
                         });

crates/esplora/src/blocking_ext.rs

@@ -3,7 +3,7 @@ use std::thread::JoinHandle;
 use bdk_chain::collections::btree_map;
 use bdk_chain::collections::BTreeMap;
 use bdk_chain::{
-    bitcoin::{BlockHash, OutPoint, ScriptBuf, TxOut, Txid},
+    bitcoin::{Amount, BlockHash, OutPoint, ScriptBuf, TxOut, Txid},
     local_chain::{self, CheckPoint},
     BlockId, ConfirmationTimeHeightAnchor, TxGraph,
 };
@@ -218,7 +218,7 @@ impl EsploraExt for esplora_client::BlockingClient {
                                 },
                                 TxOut {
                                     script_pubkey: prevout.scriptpubkey.clone(),
-                                    value: prevout.value,
+                                    value: Amount::from_sat(prevout.value),
                                 },
                             ))
                         });