chore: update function decorators to use spaces.gpu

Signed-off-by: Suvaditya Mukherjee <suvadityamuk@gmail.com>

demos/pipeline_fn.py

@@ -1,5 +1,6 @@
 import os
 import os.path as osp
+import spaces
 import gc
 import trimesh
 from PIL import Image
@@ -49,6 +50,7 @@ def file_sha256(path: str, chunk_size: int = 1 << 20) -> str:
             h.update(chunk)
     return h.hexdigest()
 
+@spaces.GPU(duration=360)
 def init_partfield(obj_path):
     torch.manual_seed(0)
     random.seed(0)
@@ -71,6 +73,7 @@ def init_partfield(obj_path):
     partfield_model.eval()
     return partfield_model
 
+@spaces.GPU(duration=360)
 def partfield_pipeline_predict(obj_path, output_dir):
     
     log.info("Extracting PartField feature planes...")
@@ -115,6 +118,7 @@ class GuideFlow3dPipeline:
         self.cfg = config
         return self
 
+    @spaces.GPU(duration=360)
     def preprocess(
         self,
         structure_mesh: str,
@@ -225,6 +229,7 @@ class GuideFlow3dPipeline:
             "voxel_dir": voxel_dir
         }
 
+    @spaces.GPU(duration=360)
     def run_appearance(
         self,
         structure_mesh: str,
@@ -408,6 +413,7 @@ class GuideFlow3dPipeline:
             return None, None
         return output_mesh_path, output_video_path
 
+    @spaces.GPU(duration=360)
     def run_self_similarity(
         self,
         structure_mesh: str,