Fix import error on OSS

Summary: Fixes the module import error on `import executorch.examples.llm_pte_finetuning`

Differential Revision: D71001041

Author: dpalmasan

pyproject.toml

@@ -93,6 +93,7 @@ flatc = "executorch.data.bin:flatc"
 # into core pip packages. Refactor out the necessary utils
 # or core models files into a separate package.
 "executorch.examples.apple.coreml.llama" = "examples/apple/coreml/llama"
+"executorch.examples.llm_pte_finetuning" = "examples/llm_pte_finetuning"
 "executorch.examples.models" = "examples/models"
 "executorch.exir" = "exir"
 "executorch.extension" = "extension"