Update symlink option for save_last in ModelCheckpoint
State: closed | Pull request: yes
Labels: name: Run CICD

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<!-- pylint-output-strict-mode-false -->

beep boop 🤖: 🙏 The following files have warnings. In case you are familiar with these, please try helping us to improve the code base.

---

Your code was analyzed with PyLint. The following annotations have been identified:

```
************* Module nemo.lightning.pytorch.callbacks.model_checkpoint
nemo/lightning/pytorch/callbacks/model_checkpoint.py:634:0: C0301: Line too long (146/119) (line-too-long)
nemo/lightning/pytorch/callbacks/model_checkpoint.py:110:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/pytorch/callbacks/model_checkpoint.py:173:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/pytorch/callbacks/model_checkpoint.py:250:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/pytorch/callbacks/model_checkpoint.py:257:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/pytorch/callbacks/model_checkpoint.py:261:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/pytorch/callbacks/model_checkpoint.py:274:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/pytorch/callbacks/model_checkpoint.py:22:0: W0611: Unused import lightning.pytorch (unused-import)

-----------------------------------
Your code has been rated at 9.77/10
```

---

Thank you for improving NeMo's documentation!