added command to fix rare issue with execute hive (#2061)

Author: felix314159

docs/running_tests/execute/hive.md

@@ -34,6 +34,8 @@ and running:
 uv run execute hive --fork=Cancun
 ```
 
+If the command above leads to errors such as `ImportError: Error importing plugin "pytest_plugins.execute.rpc.hive": No module named 'hive.client'` run the following to fix it: `uv run eest clean --all`.
+
 This will execute all available tests in the `tests` directory on the `Cancun` fork by connecting to the hive server running on `http://127.0.0.1:3000` and launching a single client with the appropriate genesis file.
 
 The genesis file is passed to the client with the appropriate configuration for the fork schedule, system contracts and pre-allocated seed account.