Update torchtune version

Differential Revision: [D79298696](https://our.internmc.facebook.com/intern/diff/D79298696/)

ghstack-source-id: 299663174
Pull Request resolved: #13017

Author: lucylq

requirements-examples.txt

@@ -3,5 +3,5 @@
 datasets == 3.6.0 # 4.0.0 deprecates trust_remote_code and load scripts. For now pin to 3.6.0
 timm == 1.0.7
 torchsr == 1.0.4
-torchtune >= 0.6.1
+torchtune >= 0.7.0
 transformers == 4.53.1