Merge #875: Use WitnessV0KeyHash in TestAddAddressesToSendBook

fa982f1 Use WitnessV0KeyHash in TestAddAddressesToSendBook (MarcoFalke)

Pull request description:

  Fixes bitcoin/bitcoin#32558
  Fixes #874

  This fixes a bug introduced in commit fafee85, which changed the type of the dummy address from `WitnessV0KeyHash` to `PKHash`. It was expected that this is fine, given that this is just a dummy address. However, the base58 characters can include the substring "io", leading to test failures later on.

  Fix it by just using `WitnessV0KeyHash` again.

  For reference, a passing test could look like:

  ```
  Model contains 2 rows and 2 columns.
  --- Model Data ---
  Row 0 : "io - new A\tmxgkqJWAwfUwbgzZUsWrG1stKWV6fDn8YH"
  Row 1 : "io - new B\tmhsxP2yrYDQiEncT8HzKxQSFSFJmUsudsP"
  ------------------
  ```

  A failing test could look like:

  ```
  Model contains 3 rows and 2 columns.
  --- Model Data ---
  Row 0 : "already here (s)\tmyDFZSKDQdPMMoSQgzkDtq2yioo8DA8qCX"
  Row 1 : "io - new A\tmsAqQKjMrbxYRDhGXBBJ3yUEQxj5Bf5Njz"
  Row 2 : "io - new B\tmtALQiit8dw33kznVfHDgE38ohfgz2Pchc"
  ------------------
  FAIL!  : AddressBookTests::addressBookTests() Compared values are not the same
     Actual   (table_view->model()->rowCount()): 3
     Expected (2)                              : 2
     Loc: [qt/test/addressbooktests.cpp(219)]
  ```

ACKs for top commit:
  achow101:
    ACK fa982f1
  hebasto:
    ACK fa982f1, I have reviewed the code along with the related changes from bitcoin/bitcoin#32511.

Tree-SHA512: f55d7fe4193a0706e1a3ca1a2c0fbf2f04dc5b177699add00013ec56d64218ac85b80dad6e99f9fde26f4c9fca79f99e68ded057c5862364064404ac06b77176

Author: hebasto

src/qt/test/addressbooktests.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022 The Bitcoin Core developers
+// Copyright (c) 2017-present The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -85,8 +85,7 @@ void TestAddAddressesToSendBook(interfaces::Node& node)
     }
 
     auto build_address{[]() {
-        CKey key = GenerateRandomKey();
-        const PKHash dest{key.GetPubKey()};
+        const WitnessV0KeyHash dest{GenerateRandomKey().GetPubKey()};
         return std::make_pair(dest, QString::fromStdString(EncodeDestination(dest)));
     }};