[BUG] wandb init path
<!-- 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.nemo_logger
nemo/lightning/nemo_logger.py:75:0: C0301: Line too long (125/119) (line-too-long)
nemo/lightning/nemo_logger.py:98:0: C0301: Line too long (120/119) (line-too-long)
nemo/lightning/nemo_logger.py:99:0: C0301: Line too long (123/119) (line-too-long)
nemo/lightning/nemo_logger.py:104:0: C0301: Line too long (127/119) (line-too-long)
nemo/lightning/nemo_logger.py:174:0: C0301: Line too long (125/119) (line-too-long)
nemo/lightning/nemo_logger.py:207:0: C0301: Line too long (128/119) (line-too-long)
nemo/lightning/nemo_logger.py:208:0: C0301: Line too long (124/119) (line-too-long)
nemo/lightning/nemo_logger.py:213:0: C0301: Line too long (124/119) (line-too-long)

-----------------------------------
Your code has been rated at 9.46/10
```

---

Thank you for improving NeMo's documentation!
Wandb recently changed the init directory to be validated as a string, pathlib.Path fails. We have requested them to change this, in the interim we should either pin Wandb `wandb==0.16.0` or avoid using pathlib.Path with Wandb constructs.

