test: add stress tests for initialization

test/functional/test_runner.py

@@ -275,6 +275,7 @@ BASE_SCRIPTS = [
     'wallet_taproot.py',
     'p2p_fingerprint.py',
     'feature_uacomment.py',
+    'feature_init.py',
     'wallet_coinbase_category.py --legacy-wallet',
     'wallet_coinbase_category.py --descriptors',
     'feature_filelock.py',