multi: upgrade to btcd v2 modules

Migrate all btcd dependencies to the new per-package v2 modules (wire/v2,
txscript/v2, chaincfg/v2, chainhash/v2, btcutil/v2, psbt/v2, btcec/v2)
introduced by btcd v0.26.0, and pin the tagged ecosystem versions:
btcwallet v0.17.0, neutrino v0.18.0 and lightning-onion v1.4.0.

The bulk of the import rewrite was produced by the scripted diff from
btcsuite/btcd#2547 (followed by 'make rpc'). The
address symbols that moved out of btcutil into the new address package
are imported as btcaddr where a local "address" variable would otherwise
shadow them. The go.mod/go.sum updates and the remaining manual
compilation fixes are folded into this single commit so it builds on its
own (the migration was previously split into a reproducible scripted-diff
plus follow-ups, intended to be squashed on merge).

Author: guggero

actor/go.mod

@@ -22,6 +22,6 @@ require (
 
 replace github.com/lightningnetwork/lnd/queue => ../queue
 
-replace github.com/lightningnetwork/lnd/ticker v1.0.0 => ../ticker
+replace github.com/lightningnetwork/lnd/ticker => ../ticker
 
 replace github.com/lightningnetwork/lnd/fn/v2 => ../fn

autopilot/agent.go

@@ -10,7 +10,7 @@ import (
 	"time"
 
 	"github.com/btcsuite/btcd/btcec/v2"
-	"github.com/btcsuite/btcd/btcutil"
+	"github.com/btcsuite/btcd/btcutil/v2"
 	"github.com/lightningnetwork/lnd/fn/v2"
 	"github.com/lightningnetwork/lnd/lnutils"
 	"github.com/lightningnetwork/lnd/lnwire"

autopilot/agent_constraints.go

@@ -1,7 +1,7 @@
 package autopilot
 
 import (
-	"github.com/btcsuite/btcd/btcutil"
+	"github.com/btcsuite/btcd/btcutil/v2"
 )
 
 // AgentConstraints is an interface the agent will query to determine what

autopilot/agent_constraints_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/btcsuite/btcd/btcutil"
+	"github.com/btcsuite/btcd/btcutil/v2"
 	"github.com/lightningnetwork/lnd/lnwire"
 )
 

autopilot/agent_test.go

@@ -10,8 +10,8 @@ import (
 	"time"
 
 	"github.com/btcsuite/btcd/btcec/v2"
-	"github.com/btcsuite/btcd/btcutil"
-	"github.com/btcsuite/btcd/wire"
+	"github.com/btcsuite/btcd/btcutil/v2"
+	"github.com/btcsuite/btcd/wire/v2"
 	"github.com/stretchr/testify/require"
 )
 

autopilot/centrality_testdata_test.go

@@ -4,7 +4,7 @@ import (
 	"testing"
 
 	"github.com/btcsuite/btcd/btcec/v2"
-	"github.com/btcsuite/btcd/btcutil"
+	"github.com/btcsuite/btcd/btcutil/v2"
 	"github.com/stretchr/testify/require"
 )
 

autopilot/combinedattach.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"fmt"
 
-	"github.com/btcsuite/btcd/btcutil"
+	"github.com/btcsuite/btcd/btcutil/v2"
 )
 
 // WeightedHeuristic is a tuple that associates a weight to an

autopilot/externalscoreattach.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"sync"
 
-	"github.com/btcsuite/btcd/btcutil"
+	"github.com/btcsuite/btcd/btcutil/v2"
 )
 
 // ExternalScoreAttachment is an implementation of the AttachmentHeuristic

autopilot/externalscoreattach_test.go

@@ -4,7 +4,7 @@ import (
 	"testing"
 
 	"github.com/btcsuite/btcd/btcec/v2"
-	"github.com/btcsuite/btcd/btcutil"
+	"github.com/btcsuite/btcd/btcutil/v2"
 	"github.com/lightningnetwork/lnd/autopilot"
 )
 

autopilot/graph.go

@@ -8,7 +8,7 @@ import (
 
 	"github.com/btcsuite/btcd/btcec/v2"
 	"github.com/btcsuite/btcd/btcec/v2/ecdsa"
-	"github.com/btcsuite/btcd/btcutil"
+	"github.com/btcsuite/btcd/btcutil/v2"
 	graphdb "github.com/lightningnetwork/lnd/graph/db"
 	"github.com/lightningnetwork/lnd/graph/db/models"
 	"github.com/lightningnetwork/lnd/lnwire"