Merge #19022: test: Fix intermittent failure in feature_dbcrash

fa2ca0c test: Fix intermittent failure in feature_dbcrash (MarcoFalke)

Pull request description:

  Example backtrace https://cirrus-ci.com/task/6005716207009792?command=functional_test#L817

ACKs for top commit:
  jnewbery:
    utACK fa2ca0c

Tree-SHA512: 978b3ac222f4764c887719240cfd1b29f72cdd273a456345b631e622db0a38e345c25a70d0bae8d4063c1ff6c1af892a7ee37d0d66f47284c2524b663c3afe55

Author: MarcoFalke

test/functional/feature_dbcrash.py

@@ -256,7 +256,11 @@ def run_test(self):
             self.log.debug("Mining longer tip")
             block_hashes = []
             while current_height + 1 > self.nodes[3].getblockcount():
-                block_hashes.extend(self.nodes[3].generate(min(10, current_height + 1 - self.nodes[3].getblockcount())))
+                block_hashes.extend(self.nodes[3].generatetoaddress(
+                    nblocks=min(10, current_height + 1 - self.nodes[3].getblockcount()),
+                    # new address to avoid mining a block that has just been invalidated
+                    address=self.nodes[3].getnewaddress(),
+                ))
             self.log.debug("Syncing %d new blocks...", len(block_hashes))
             self.sync_node3blocks(block_hashes)
             utxo_list = self.nodes[3].listunspent()
@@ -281,5 +285,6 @@ def run_test(self):
             if self.restart_counts[i] == 0:
                 self.log.warning("Node %d never crashed during utxo flush!", i)
 
+
 if __name__ == "__main__":
     ChainstateWriteCrashTest().main()