Symlink last checkpoint will fail on windows due to permission error

Bug description

Hi, with lightning v2.1 on Windows the creation of the symlink for the "last" ckpt will result in a permission error. This is because on Windows creating a (soft) symlink requires admin permission.

What version are you seeing the problem on?

v2.1

How to reproduce the bug

Train any model with ModelCheckpoint Callback (save_last=True and save_top_k!=0) on Windows without admin permissions

Error messages and logs

lightning\pytorch\callbacks\model_checkpoint.py", line 388, in _link_checkpoint
    os.symlink(filepath, linkpath)
OSError: [WinError 1314] A required privilege is not held by the client

Environment

Current environment

* CUDA: - GPU: - NVIDIA GeForce RTX 3080 Ti Laptop GPU - available: True - version: 12.1 * Lightning: - lightning: 2.1.0 - lightning-cloud: 0.5.37 - lightning-utilities: 0.9.0 - pytorch-lightning: 2.1.0 - pytorch-optimizer: 2.11.1 - torch: 2.1.0+cu121 - torchaudio: 2.1.0+cu121 - torchmetrics: 1.2.0 - torchvision: 0.16.0+cu121 * Packages: - absl-py: 1.4.0 - aiohttp: 3.8.5 - aiosignal: 1.3.1 - alembic: 1.11.1 - ansicon: 1.89.0 - antlr4-python3-runtime: 4.9.3 - anyio: 3.7.1 - arrow: 1.2.3 - asttokens: 2.2.1 - async-timeout: 4.0.2 - attrs: 23.1.0 - autopage: 0.5.1 - av: 10.0.0 - backcall: 0.2.0 - beautifulsoup4: 4.12.2 - black: 23.7.0 - blessed: 1.20.0 - cachetools: 5.3.1 - certifi: 2022.12.7 - cfgv: 3.3.1 - charset-normalizer: 2.1.1 - click: 8.1.6 - cliff: 4.3.0 - cmaes: 0.10.0 - cmd2: 2.4.3 - colorama: 0.4.6 - colorlog: 6.7.0 - comm: 0.1.3 - contourpy: 1.1.0 - croniter: 1.3.15 - cycler: 0.11.0 - dateutils: 0.6.12 - debugpy: 1.6.7 - decorator: 5.1.1 - deepdiff: 6.3.1 - distlib: 0.3.7 - exceptiongroup: 1.1.2 - executing: 1.2.0 - fastapi: 0.100.0 - fastcore: 1.5.29 - filelock: 3.12.2 - fonttools: 4.41.0 - frozenlist: 1.4.0 - fsspec: 2023.6.0 - furl: 2.1.3 - google-auth: 2.22.0 - google-auth-oauthlib: 1.0.0 - greenlet: 2.0.2 - grpcio: 1.56.2 - h11: 0.14.0 - h5py: 3.9.0 - hydra-colorlog: 1.2.0 - hydra-core: 1.3.2 - hydra-joblib-launcher: 1.2.0 - hydra-optuna-sweeper: 1.2.0 - identify: 2.5.25 - idna: 3.4 - imageio: 2.31.6 - importlib-metadata: 6.8.0 - iniconfig: 2.0.0 - inquirer: 3.1.3 - ipykernel: 6.24.0 - ipython: 8.14.0 - itsdangerous: 2.1.2 - jedi: 0.18.2 - jinja2: 3.1.2 - jinxed: 1.2.0 - joblib: 1.3.1 - jsonschema: 4.18.4 - jsonschema-specifications: 2023.7.1 - jupyter-client: 8.3.0 - jupyter-core: 5.3.1 - kiwisolver: 1.4.4 - lightning: 2.1.0 - lightning-cloud: 0.5.37 - lightning-utilities: 0.9.0 - mako: 1.2.4 - markdown: 3.4.3 - markdown-it-py: 3.0.0 - markupsafe: 2.1.2 - matplotlib: 3.8.0 - matplotlib-inline: 0.1.6 - mdurl: 0.1.2 - mplcyberpunk: 0.7.0 - mpmath: 1.2.1 - multidict: 6.0.4 - mypy-extensions: 1.0.0 - nest-asyncio: 1.5.6 - networkx: 3.0 - nodeenv: 1.8.0 - numpy: 1.26.0 - oauthlib: 3.2.2 - omegaconf: 2.3.0 - openexr: 1.3.8 - optuna: 2.10.1 - ordered-set: 4.1.0 - orderedmultidict: 1.0.1 - packaging: 23.1 - pandas: 2.1.2 - parso: 0.8.3 - pathlib2: 2.3.7.post1 - pathspec: 0.11.2 - pbr: 5.11.1 - pefile: 2023.2.7 - pickleshare: 0.7.5 - pillow: 9.3.0 - pip: 23.3.1 - platformdirs: 3.9.1 - pluggy: 1.2.0 - pre-commit: 3.5.0 - prettytable: 3.8.0 - prompt-toolkit: 3.0.39 - protobuf: 4.23.4 - psutil: 5.9.5 - pure-eval: 0.2.2 - pyasn1: 0.5.0 - pyasn1-modules: 0.3.0 - pydantic: 1.10.11 - pygments: 2.15.1 - pyjwt: 2.4.0 - pyparsing: 3.0.9 - pyperclip: 1.8.2 - pyreadline3: 3.4.1 - pyroexr: 0.2.0 - pyrootutils: 1.0.4 - pytest: 7.4.3 - python-dateutil: 2.8.2 - python-dotenv: 1.0.0 - python-editor: 1.0.4 - python-multipart: 0.0.6 - pytorch-lightning: 2.1.0 - pytorch-optimizer: 2.11.1 - pytz: 2023.3 - pywin32: 306 - pyyaml: 6.0.1 - pyzmq: 25.1.0 - readchar: 4.0.5 - referencing: 0.30.0 - requests: 2.28.1 - requests-oauthlib: 1.3.1 - rich: 13.6.0 - rpds-py: 0.9.2 - rsa: 4.9 - scipy: 1.11.1 - seaborn: 0.13.0 - setuptools: 65.5.0 - six: 1.16.0 - sniffio: 1.3.0 - soupsieve: 2.4.1 - sqlalchemy: 2.0.19 - stack-data: 0.6.2 - starlette: 0.27.0 - starsessions: 1.3.0 - stevedore: 5.1.0 - sympy: 1.11.1 - tensorboard: 2.15.0 - tensorboard-data-server: 0.7.1 - tomli: 2.0.1 - torch: 2.1.0+cu121 - torchaudio: 2.1.0+cu121 - torchmetrics: 1.2.0 - torchvision: 0.16.0+cu121 - tornado: 6.3.2 - tqdm: 4.66.1 - traitlets: 5.9.0 - typing-extensions: 4.7.1 - tzdata: 2023.3 - urllib3: 1.26.13 - uvicorn: 0.23.1 - virtualenv: 20.24.1 - wcwidth: 0.2.6 - websocket-client: 1.6.1 - websockets: 11.0.3 - werkzeug: 2.3.6 - wheel: 0.40.0 - yarl: 1.9.2 - zipp: 3.16.2 * System: - OS: Windows - architecture: - 64bit - WindowsPE - processor: Intel64 Family 6 Model 154 Stepping 3, GenuineIntel - python: 3.10.11 - release: 10 - version: 10.0.22621

More info

No response

cc @carmocca @awaelchli

Lightning-AI / pytorch-lightning