update checkpointing

[Borda]

What does this PR do?

minor feature update

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---

📚 Documentation preview 📚: https://pytorch-lightning--20653.org.readthedocs.build/en/20653/

[github-actions]

⚡ Required checks status: All passing 🟢

Groups summary

🟢 pytorch_lightning: Tests workflow

Check ID	Status
pl-cpu-guardian	success	✅

These checks are required after the changes to src/lightning/pytorch/trainer/__init__.py, src/lightning/pytorch/trainer/connectors/callback_connector.py, src/lightning/pytorch/trainer/connectors/checkpoint_connector.py, src/lightning/pytorch/trainer/trainer.py, src/lightning/pytorch/utilities/model_registry.py.

🟢 pytorch_lightning: Azure GPU

Check ID	Status
pytorch-lightning (GPUs) (testing Lightning | latest)	success	✅
pytorch-lightning (GPUs) (testing PyTorch | latest)	success	✅

These checks are required after the changes to src/lightning/pytorch/trainer/__init__.py, src/lightning/pytorch/trainer/connectors/callback_connector.py, src/lightning/pytorch/trainer/connectors/checkpoint_connector.py, src/lightning/pytorch/trainer/trainer.py, src/lightning/pytorch/utilities/model_registry.py.

🟢 pytorch_lightning: Benchmarks

Check ID	Status
lightning.Benchmarks	success	✅

These checks are required after the changes to src/lightning/pytorch/trainer/__init__.py, src/lightning/pytorch/trainer/connectors/callback_connector.py, src/lightning/pytorch/trainer/connectors/checkpoint_connector.py, src/lightning/pytorch/trainer/trainer.py, src/lightning/pytorch/utilities/model_registry.py.

🟢 pytorch_lightning: Docs

Check ID	Status
docs-make (pytorch, doctest)	success	✅
docs-make (pytorch, html)	success	✅

These checks are required after the changes to src/lightning/pytorch/trainer/__init__.py, src/lightning/pytorch/trainer/connectors/callback_connector.py, src/lightning/pytorch/trainer/connectors/checkpoint_connector.py, src/lightning/pytorch/trainer/trainer.py, src/lightning/pytorch/utilities/model_registry.py, requirements/pytorch/docs.txt.

🟢 mypy

Check ID	Status
mypy	success	✅

These checks are required after the changes to src/lightning/pytorch/trainer/__init__.py, src/lightning/pytorch/trainer/connectors/callback_connector.py, src/lightning/pytorch/trainer/connectors/checkpoint_connector.py, src/lightning/pytorch/trainer/trainer.py, src/lightning/pytorch/utilities/model_registry.py, src/version.info.

🟢 install

Check ID	Status
install-pkg-guardian	success	✅

These checks are required after the changes to src/lightning/pytorch/trainer/__init__.py, src/lightning/pytorch/trainer/connectors/callback_connector.py, src/lightning/pytorch/trainer/connectors/checkpoint_connector.py, src/lightning/pytorch/trainer/trainer.py, src/lightning/pytorch/utilities/model_registry.py, src/version.info.

---

Thank you for your contribution! 💜

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[codecov]

Codecov Report

Attention: Patch coverage is 40.44944% with 53 lines in your changes missing coverage. Please review.

Project coverage is 79%. Comparing base (29ed24f) to head (0c17cd7).
Report is 119 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (29ed24f) and HEAD (0c17cd7). Click for more details.

HEAD has 321 uploads less than BASE

Flag	BASE (29ed24f)	HEAD (0c17cd7)
cpu	96	24
python	12	3
lightning_fabric	20	0
pytest	51	0
lightning	61	15
python3.11	24	6
python3.10	24	6
python3.12.7	36	9
gpu	3	0
pytorch2.1	12	6
pytorch_lightning	18	9
pytest-full	48	24
pytorch2.2.2	6	3
pytorch2.3	6	3
pytorch2.5	6	3
pytorch2.4.1	6	3
pytorch2.5.1	6	3
pytorch2.6	6	3

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #20653     +/-   ##
=========================================
- Coverage      88%      79%     -9%     
=========================================
  Files         267      265      -2     
  Lines       23364    23394     +30     
=========================================
- Hits        20467    18386   -2081     
- Misses       2897     5008   +2111