[qa] Make bumpfee.py test function order consistent

Run bumpfee tests in top-down order, now that the test fragility is fixed, and
they can actually run in order.

test/functional/bumpfee.py

@@ -57,13 +57,13 @@ class BumpFeeTest(BitcoinTestFramework):
 
         self.log.info("Running tests")
         dest_address = peer_node.getnewaddress()
-        test_small_output_fails(rbf_node, dest_address)
-        test_dust_to_fee(rbf_node, dest_address)
         test_simple_bumpfee_succeeds(rbf_node, peer_node, dest_address)
         test_segwit_bumpfee_succeeds(rbf_node, dest_address)
         test_nonrbf_bumpfee_fails(peer_node, dest_address)
         test_notmine_bumpfee_fails(rbf_node, peer_node, dest_address)
         test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address)
+        test_small_output_fails(rbf_node, dest_address)
+        test_dust_to_fee(rbf_node, dest_address)
         test_settxfee(rbf_node, dest_address)
         test_rebumping(rbf_node, dest_address)
         test_rebumping_not_replaceable(rbf_node, dest_address)