test: only run test for descriptor wallets

since this test uses bech32m, we skip unless sqlite is used, which is the
same as checking if we are using descriptor wallets or not

test/functional/wallet_avoid_mixing_output_types.py

@@ -124,6 +124,7 @@ class AddressInputTypeGrouping(BitcoinTestFramework):
 
     def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()
+        self.skip_if_no_sqlite()
 
     def make_payment(self, A, B, v, addr_type):
         fee_rate = random.randint(1, 20)