ValueError: setting an array element with a sequence. The requested array has an inhomogeneous shape after 2 dimensions. The detected shape was (6, 33810) + inhomogeneous part.

Hello Scikit-learn team,

I am encountering an issue while running inference VotingClassifier model with `voting="hard"` argument, I found that this issue may related to [NEP 34](https://numpy.org/neps/nep-0034-infer-dtype-is-object.html) restriction of `dtype=object` in numpy and the solution is downgrading to numpy `1.23.1`. However, it doesn't work in my case due to dependency conflicts with pandas and other packages. I'd appreciate if you could analyze this issue and provide an update when possible.

```
Traceback (most recent call last):
  File "/home/mtoan65/Documents/Sentiment_Analysis/training.py", line 135, in <module>
    ensemble_model, trained_models, model_results, ensemble_results = main(sparse=False)
                                                                      ^^^^^^^^^^^^^^^^^^
  File "/home/mtoan65/Documents/Sentiment_Analysis/training.py", line 127, in main
    trained_ensemble, ensemble_results = train_ensemble_model(
                                         ^^^^^^^^^^^^^^^^^^^^^
  File "/home/mtoan65/Documents/Sentiment_Analysis/training.py", line 89, in train_ensemble_model
    ensemble_results, trained_ensemble = train_and_evaluate_ensemble(voting_clf, X_train, X_test, y_train, y_test)
                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/mtoan65/Documents/Sentiment_Analysis/training/ensemble_trainer.py", line 33, in train_and_evaluate_ensemble
    y_pred_ensemble = voting_clf.predict(X_test)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/mtoan65/Documents/Sentiment_Analysis/.venv/lib/python3.11/site-packages/sklearn/ensemble/_voting.py", line 443, in predict
    predictions = self._predict(X)
                  ^^^^^^^^^^^^^^^^
  File "/home/mtoan65/Documents/Sentiment_Analysis/.venv/lib/python3.11/site-packages/sklearn/ensemble/_voting.py", line 80, in _predict
    return np.asarray([est.predict(X) for est in self.estimators_]).T
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: setting an array element with a sequence. The requested array has an inhomogeneous shape after 2 dimensions. The detected shape was (6, 33810) + inhomogeneous part.
```

### Steps/Code to Reproduce

```
try:
  main_logger.info("Training ensemble")
  voting_clf.fit(X_train, y_train)
  
  main_logger.info("Evaluating ensemble")
  y_pred_ensemble = voting_clf.predict(X_test)
  results = classification_report(y_test, y_pred_ensemble, output_dict=True)
  main_logger.info(f"Ensemble Results:\n{classification_report(y_test, y_pred_ensemble)}")
  
  return results, voting_clf

except Exception as e:
    main_logger.error(f"Error in ensemble training: {str(e)}")
    raise
```

### Expected Results

```Finish training```

### Actual Results

```
Traceback (most recent call last):
  File "/home/mtoan65/Documents/Sentiment_Analysis/training.py", line 135, in <module>
    ensemble_model, trained_models, model_results, ensemble_results = main(sparse=False)
                                                                      ^^^^^^^^^^^^^^^^^^
  File "/home/mtoan65/Documents/Sentiment_Analysis/training.py", line 127, in main
    trained_ensemble, ensemble_results = train_ensemble_model(
                                         ^^^^^^^^^^^^^^^^^^^^^
  File "/home/mtoan65/Documents/Sentiment_Analysis/training.py", line 89, in train_ensemble_model
    ensemble_results, trained_ensemble = train_and_evaluate_ensemble(voting_clf, X_train, X_test, y_train, y_test)
                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/mtoan65/Documents/Sentiment_Analysis/training/ensemble_trainer.py", line 33, in train_and_evaluate_ensemble
    y_pred_ensemble = voting_clf.predict(X_test)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/mtoan65/Documents/Sentiment_Analysis/.venv/lib/python3.11/site-packages/sklearn/ensemble/_voting.py", line 443, in predict
    predictions = self._predict(X)
                  ^^^^^^^^^^^^^^^^
  File "/home/mtoan65/Documents/Sentiment_Analysis/.venv/lib/python3.11/site-packages/sklearn/ensemble/_voting.py", line 80, in _predict
    return np.asarray([est.predict(X) for est in self.estimators_]).T
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: setting an array element with a sequence. The requested array has an inhomogeneous shape after 2 dimensions. The detected shape was (6, 33810) + inhomogeneous part.
```

### Versions

```shell
1.5.2
```

COMMENT:
Closing since we lack the info to reproduce the problem. Feel free to reopen an issue with the requested information.

Labels: Bug, Needs Info