chore: drop version of wallet to the oldest supported by current vers…

…ion of script

Version 19.3.0 to 0.16.1.1

test/functional/wallet_upgradewallet.py

@@ -30,6 +30,7 @@ def set_test_params(self):
             ["-usehd=1"],            # v20.0.1 wallet
             ["-usehd=0"]             # v19.3.0 wallet
         ]
+        self.wallet_names = [self.default_wallet_name, self.default_wallet_name, None]
 
     def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()
@@ -40,7 +41,7 @@ def setup_nodes(self):
         self.add_nodes(self.num_nodes, extra_args=self.extra_args, versions=[
             None,
             20000100,
-            19030000,
+              160101, # that's oldest version that support `import_deterministic_coinbase_privkeys`
         ])
         self.start_nodes()
         self.import_deterministic_coinbase_privkeys()