Upload OpenPI checkpoint step 11999 (metadata)

openpi_upload_metadata.json

@@ -0,0 +1,8 @@
+{
+  "checkpoint_dir": "/home/dell-work/.cache/openpi/openpi-checkpoints/soarm_pi05_flow_fast_token/so_arm_fast_token/11999",
+  "config_name": "soarm_pi05_flow_fast_token",
+  "exp_name": "so_arm_fast_token",
+  "step": 11999,
+  "layout": "orbax",
+  "files_uploaded_from": "11999"
+}