tests: Reset node context members on ~BasicTestingSetup

The destruction/resetting of node context members in the tests should
roughly follow the behaviour of the Shutdown function in `init.cpp`.

Author: TheCharlatan

src/test/util/setup_common.cpp

@@ -144,6 +144,7 @@ BasicTestingSetup::BasicTestingSetup(const ChainType chainType, const std::vecto
 
 BasicTestingSetup::~BasicTestingSetup()
 {
+    m_node.kernel.reset();
     SetMockTime(0s); // Reset mocktime for following tests
     LogInstance().DisconnectTestLogger();
     fs::remove_all(m_path_root);
@@ -202,8 +203,9 @@ ChainTestingSetup::~ChainTestingSetup()
     m_node.netgroupman.reset();
     m_node.args = nullptr;
     m_node.mempool.reset();
-    m_node.scheduler.reset();
+    m_node.fee_estimator.reset();
     m_node.chainman.reset();
+    m_node.scheduler.reset();
 }
 
 void ChainTestingSetup::LoadVerifyActivateChainstate()