test: Fix feature_index_prune.py to explicitly disable indices

When BIP157 filters are enabled by default, the restart_without_indices
function needs to explicitly disable both blockfilterindex and
coinstatsindex to avoid conflicts with pruning.

Author: PastaPastaPasta

test/functional/feature_index_prune.py

@@ -54,7 +54,7 @@ def mine_batches(self, blocks):
 
     def restart_without_indices(self):
         for i in range(3):
-            self.restart_node(i, extra_args=["-fastprune", "-prune=1"] + DEPLOYMENT_ARGS, expected_stderr=EXPECTED_STDERR_NO_GOV_PRUNE)
+            self.restart_node(i, extra_args=["-fastprune", "-prune=1", "-blockfilterindex=0", "-coinstatsindex=0"] + DEPLOYMENT_ARGS, expected_stderr=EXPECTED_STDERR_NO_GOV_PRUNE)
         self.reconnect_nodes()
 
     def run_test(self):