Merge bitcoin/bitcoin#23046: test: Add txindex migration test

fadc4c7272 test: Add txindex migration test (MarcoFalke)

Pull request description:

  Test for #22626

ACKs for top commit:
  theStack:
    Tested ACK fadc4c7272 🌁

Tree-SHA512: fc7133ef52826bf0d4fa2ac72c3f1bed4a185ff7492396552ff2cbf6531b053238039211a710cbb949379c56875cd7715f1ed49a514dd3b3f1b46554e3d4bef5

test/functional/test_runner.py

@@ -296,6 +296,7 @@ BASE_SCRIPTS = [
     'rpc_deriveaddresses.py --usecli',
     'p2p_ping.py',
     'rpc_scantxoutset.py',
+    'feature_txindex_compatibility.py',
     'feature_logging.py',
     'feature_anchors.py',
     'feature_coinstatsindex.py',