Fix a flaky test (and less DEFAULT_TX_CONFIG) (#20280)

Author: Quexington

chia/_tests/wallet/vc_wallet/test_vc_wallet.py

@@ -164,17 +164,18 @@ async def test_vc_lifecycle(wallet_environments: WalletTestFramework) -> None:
     }
 
     # Generate DID as an "authorized provider"
-    async with wallet_0.wallet_state_manager.new_action_scope(DEFAULT_TX_CONFIG, push=True) as action_scope:
+    async with wallet_0.wallet_state_manager.new_action_scope(wallet_environments.tx_config, push=True) as action_scope:
         did_id: bytes32 = bytes32.from_hexstr(
             (
                 await DIDWallet.create_new_did_wallet(
                     wallet_node_0.wallet_state_manager, wallet_0, uint64(1), action_scope
                 )
             ).get_my_DID()
         )
+    await full_node_api.wait_for_wallet_synced(wallet_node_0)
 
     # Mint a VC
-    async with wallet_0.wallet_state_manager.new_action_scope(DEFAULT_TX_CONFIG, push=True) as action_scope:
+    async with wallet_0.wallet_state_manager.new_action_scope(wallet_environments.tx_config, push=True) as action_scope:
         ph = await action_scope.get_puzzle_hash(wallet_0.wallet_state_manager)
     vc_record = (
         await client_0.vc_mint(