refactor: use address_to_scriptpubkey to retrieve addresses scriptpubkey

This commit updates the code by replacing the RPC call used to
decode an address and retrieve its corresponding scriptpubkey
with the address_to_scriptpubkey function. address_to_scriptpubkey
function can now decode all addresses formats, which makes
it more efficient to use.

test/functional/test_framework/wallet.py

@@ -13,6 +13,7 @@ from typing import (
     Optional,
 )
 from test_framework.address import (
+    address_to_scriptpubkey,
     create_deterministic_address_bcrt1_p2tr_op_true,
     key_to_p2pkh,
     key_to_p2sh_p2wpkh,
@@ -96,7 +97,7 @@ class MiniWallet:
             self._scriptPubKey = key_to_p2pk_script(pub_key.get_bytes())
         elif mode == MiniWalletMode.ADDRESS_OP_TRUE:
             self._address, self._internal_key = create_deterministic_address_bcrt1_p2tr_op_true()
-            self._scriptPubKey = bytes.fromhex(self._test_node.validateaddress(self._address)['scriptPubKey'])
+            self._scriptPubKey = address_to_scriptpubkey(self._address)
 
         # When the pre-mined test framework chain is used, it contains coinbase
         # outputs to the MiniWallet's default address in blocks 76-100