Update go version

vendor/honnef.co/go/tools/internal/xtools-internal/graph/reachable.go

@@ -0,0 +1,23 @@
+// Copyright 2026 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package graph
+
+// Reachable returns the set of nodes reachable from the given roots.
+func Reachable[NodeID comparable](g Graph[NodeID], roots ...NodeID) map[NodeID]bool {
+	seen := make(map[NodeID]bool)
+	var visit func(node NodeID)
+	visit = func(node NodeID) {
+		if !seen[node] {
+			seen[node] = true
+			for e := range g.Out(node) {
+				visit(e)
+			}
+		}
+	}
+	for _, root := range roots {
+		visit(root)
+	}
+	return seen
+}