Add latency measurement for text models

Author: Guang Yang

.github/workflows/test_models.yml

@@ -35,8 +35,10 @@ jobs:
           - pvt
           - qwen2
           - roberta
+          - smollm
           - swin
           - t5
+          - vit
         executorch-version: ['0.4.0', 'nightly']
         python-version: ['3.10', '3.11', '3.12']
         os: [macos-15]