Fix segwit / taproot deserialization bug

Author: adiabat

wire/msgtx.go

@@ -81,13 +81,13 @@ const (
 	// item: 1 byte for length + 1 byte for the witness item itself, or two
 	// bytes. This value is then divided by the currently allowed maximum
 	// "cost" for a transaction.
-	maxWitnessItemsPerInput = 500000
+	maxWitnessItemsPerInput = 4000000
 
 	// maxWitnessItemSize is the maximum allowed size for an item within
 	// an input's witness data. This number is derived from the fact that
 	// for script validation, each pushed item onto the stack must be less
 	// than 10k bytes.
-	maxWitnessItemSize = 11000
+	maxWitnessItemSize = 4000000
 )
 
 // scriptFreeList defines a free list of byte slices (up to the maximum number