Change ckpt file extensions

[scjjb]

Update ckpt file extensions to pth rather than pt

[mengxfei]

将 ckpt 文件扩展名更新为 pth 而不是 pt
Hi, I'm running main.py under 2-Weakly-Supervised-Subtyping, and I'm getting an error:
File "/public/mxf/HIPT-master/2-Weakly-Supervised-Subtyping/datasets/dataset_generic.py", line 362, in getitem
features = torch.load(full_path)
FileNotFoundError: [Errno 2] No such file or directory: '/media/ssd1/pan-cancer/tcga_lung/extracted_mag20x_patch256_fp/vits_tcga_pancancer_dino_pt_patch_features/TCGA-18-3417-01Z-00-DX1.B424DA03-9007-4FD0-9A92-BCB40319711C.pt'
I can't find it in my folder，what do I need to do to fix it?