qa: regenerate hardcoded regtest chain for kernel lib unit tests #35338

The kernel library uses a harcoded regtest block chain in the unit tests. This chain was generated prior to #32155 and its coinbase transactions are not BIP 54 compatible.

This PR updates the hardcoded chain to be BIP 54 compatible and contain more transactions. It was generated based on the chain from the wallet_migration.py functional test as it contains coins for a wide variety of output types (though it may be useful to add more transactions spending from these output types). Some trivial hardcoded values in the unit test had to be updated to match the new chain.

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Code Coverage & Benchmarks

For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/35338.

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ACK 98f706c698ae77fc91cd46ba2c3750b125d95016

Will probably re-generate this again at some point. Ideally we'd have a generation tool that does this for all kernel bindings with chains of interesting transactions.

ACK 98f706c698ae77fc91cd46ba2c3750b125d95016

Ran the test locally.

Post-merge ACK.

<details> <summary>Tested with diff</summary>

**diff --git a/src/test/kernel/test_kernel.cpp b/src/test/kernel/test_kernel.cpp
index e6d215dc57..c790d809ec 100644
--- a/src/test/kernel/test_kernel.cpp
+++ b/src/test/kernel/test_kernel.cpp
@@ -1171,6 +1171,14 @@ BOOST_AUTO_TEST_CASE(btck_chainman_regtest_tests)
 
     for (const auto block_tree_entry : chain.Entries()) {
         auto block{chainman->ReadBlock(block_tree_entry)};
+
+        if (block_tree_entry.GetHeight() > 0) {
+            std::cout << "Asserting coinbase bip54 compatibility at height " << block_tree_entry.GetHeight() << std::endl;
+            const TransactionView coinbase_tx{block->Transactions()[0]};
+            BOOST_CHECK_EQUAL(coinbase_tx.GetLocktime(), block_tree_entry.GetHeight() - 1);
+            BOOST_CHECK_NE(coinbase_tx.GetInput(0).GetSequence(), 0xffffffff);
+        }
+
         for (const auto transaction : block->Transactions()) {
             std::vector<TransactionInput> inputs;
             std::vector<TransactionOutput> spent_outputs;
**

</details>

Ideally we'd have a generation tool that does this for all kernel bindings with chains of interesting transactions.

I'd like to work on that. :)