Fix path issue in scripts/eval_mlp.py

[ZhifengWu7]

Modified the path to load the JSON file to use a relative path instead of an absolute path.

Before changing(line 83):

params = lib.load_json(f"/home/rototo/tab-diffusion/tuned_models/mlp/{Path(real_data_path).name}_cv.json")

After changing(line 83):

params = lib.load_json(f"tuned_models/mlp/{Path(real_data_path).name}_cv.json")

[ZhifengWu7]

There is also an issue in the scripts/eval_seeds.py
Before changing(line 17):

'ctabgan-plus': 'CTAB-GAN-Plus/pipeline_ctabgan.py',

After changing(line 17):

'ctabgan-plus': 'CTAB-GAN-Plus/pipeline_ctabganp.py',