Cannot reproduce the performance of EmbCLIP on the ObjectNav task of the RoboTHOR

## Problem / Question

Official EmbCLIP is on the leaderboard with a TestSPL score of 0.2.
But according to the [tutorial](https://github.com/allenai/embodied-clip/blob/main/readme_files/baselines_robothor_objectnav.md), I got a score of 0.17.
The command I ran was:
```
python allenact/main.py -o storage/objectnav-robothor-rgb-clip-rn50 -b projects/objectnav_baselines/experiments/robothor/clip objectnav_robothor_rgb_clipresnet50gru_ddppo -c pretrained_model_ckpts/objectnav-robothor-clip-rn50.130M.pt
```
And I got the file `storage/objectnav-robothor-rgb-clip-rn50/metrics/ObjectNav-RoboTHOR-RGB-ClipResNet50GRU-DDPPO/2024-02-15_03-32-04/metrics__test_2024-02-15_03-32-04.json`
According to the method in the [documentation](https://allenact.org/projects/objectnav_baselines/), I got the metric of the validation.
According to the scripts form [robothor-challenge](https://github.com/allenai/robothor-challenge/blob/main/robothor_challenge/scripts/convert_allenact_metrics.py), I run the command:
```
python convert_allenact_metrics.py -v storage/objectnav-robothor-rgb-clip-rn50/metrics/ObjectNav-RoboTHOR-RGB-ClipResNet50GRU-DDPPO/2024-02-15_02-36-50/metrics__val_2024-02-15_02-36-50.json -t storage/objectnav-robothor-rgb-clip-rn50/metrics/ObjectNav-RoboTHOR-RGB-ClipResNet50GRU-DDPPO/2024-02-15_03-32-04/metrics__test_2024-02-15_03-32-04.json -o submission_metrics.json.gz
```
Then submit the `submission_metrics.json.gz` file,


What should I do?

## Additional context

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