Update pipeline tag to robotics

This PR updates the `pipeline_tag` from `graph-ml` to `robotics`, making the model discoverable under the robotics pipeline filter on the Hub. The rest of the metadata and the model card content remain unchanged.

README.md

@@ -1,6 +1,8 @@
 ---
+datasets:
+- avihaig/dlogps-cables
 license: cc-by-4.0
-pipeline_tag: graph-ml
+pipeline_tag: robotics
 tags:
 - pytorch
 - graph-transformer
@@ -11,8 +13,6 @@ tags:
 - deformable-linear-objects
 - cable
 - robotics
-datasets:
-- avihaig/dlogps-cables
 ---
 
 # Predicting Cable Dynamics with Physical Attention Bias: checkpoints
@@ -134,4 +134,4 @@ Lower is better.
 
 ## License
 
-CC BY 4.0, the license of the paper. The code repository is MIT.
+CC BY 4.0, the license of the paper. The code repository is MIT.