[tests] Add -blocknotify functional test

test/functional/test_runner.py

@@ -148,7 +148,7 @@ EXTENDED_SCRIPTS = [
     'example_test.py',
     'txn_doublespend.py',
     'txn_clone.py --mineblock',
-    'forknotify.py',
+    'notifications.py',
     'invalidateblock.py',
     'p2p-acceptblock.py',
     'replace-by-fee.py',