docs: update repo link preventing flakiness

[Borda]

What does this PR do?

alhough the old links works they can be source of flakes as it not direct link but GH had to do some redirects and also if ever lightning repo will be created all links broke

see flakes in https://github.com/Lightning-AI/pytorch-lightning/actions/runs/14702342250/job/41254203925?pr=20763#step:12:1950

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📚 Documentation preview 📚: https://pytorch-lightning--20769.org.readthedocs.build/en/20769/

[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/fabric/strategies/xla.py, src/lightning/fabric/strategies/xla_fsdp.py, src/lightning/pytorch/demos/mnist_datamodule.py, src/lightning/pytorch/loops/utilities.py, src/lightning/pytorch/strategies/xla.py, src/lightning/pytorch/trainer/configuration_validator.py, src/lightning/pytorch/utilities/migration/utils.py, tests/tests_pytorch/models/test_tpu.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/demos/mnist_datamodule.py, src/lightning/pytorch/loops/utilities.py, src/lightning/pytorch/strategies/xla.py, src/lightning/pytorch/trainer/configuration_validator.py, src/lightning/pytorch/utilities/migration/utils.py, tests/tests_pytorch/models/test_tpu.py, src/lightning/fabric/strategies/xla.py, src/lightning/fabric/strategies/xla_fsdp.py.

🟢 pytorch_lightning: Benchmarks

Check ID	Status
lightning.Benchmarks	success	✅

These checks are required after the changes to src/lightning/fabric/strategies/xla.py, src/lightning/fabric/strategies/xla_fsdp.py, src/lightning/pytorch/demos/mnist_datamodule.py, src/lightning/pytorch/loops/utilities.py, src/lightning/pytorch/strategies/xla.py, src/lightning/pytorch/trainer/configuration_validator.py, src/lightning/pytorch/utilities/migration/utils.py.

🟢 fabric: Docs

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

These checks are required after the changes to src/lightning/fabric/strategies/xla.py, src/lightning/fabric/strategies/xla_fsdp.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/demos/mnist_datamodule.py, src/lightning/pytorch/loops/utilities.py, src/lightning/pytorch/strategies/xla.py, src/lightning/pytorch/trainer/configuration_validator.py, src/lightning/pytorch/utilities/migration/utils.py, docs/source-pytorch/data/iterables.rst, docs/source-pytorch/upgrade/sections/1_4_advanced.rst, docs/source-pytorch/upgrade/sections/1_4_regular.rst, docs/source-pytorch/upgrade/sections/1_5_advanced.rst, docs/source-pytorch/upgrade/sections/1_5_devel.rst, docs/source-pytorch/upgrade/sections/1_5_regular.rst, docs/source-pytorch/upgrade/sections/1_6_advanced.rst, docs/source-pytorch/upgrade/sections/1_6_devel.rst, docs/source-pytorch/upgrade/sections/1_6_regular.rst, docs/source-pytorch/upgrade/sections/1_7_advanced.rst, docs/source-pytorch/upgrade/sections/1_7_devel.rst, docs/source-pytorch/upgrade/sections/1_7_regular.rst, docs/source-pytorch/upgrade/sections/1_8_advanced.rst, docs/source-pytorch/upgrade/sections/1_8_devel.rst, docs/source-pytorch/upgrade/sections/1_8_regular.rst, docs/source-pytorch/upgrade/sections/1_9_advanced.rst, docs/source-pytorch/upgrade/sections/1_9_devel.rst, docs/source-pytorch/upgrade/sections/1_9_regular.rst, docs/source-pytorch/upgrade/sections/2_0_advanced.rst, docs/source-pytorch/upgrade/sections/2_0_devel.rst, docs/source-pytorch/upgrade/sections/2_0_regular.rst.

🟢 lightning_fabric: CPU workflow

Check ID	Status
fabric-cpu-guardian	success	✅

These checks are required after the changes to src/lightning/fabric/strategies/xla.py, src/lightning/fabric/strategies/xla_fsdp.py, tests/tests_fabric/strategies/test_xla.py, tests/tests_fabric/utilities/test_distributed.py.

🟢 lightning_fabric: Azure GPU

Check ID	Status
lightning-fabric (GPUs) (testing Fabric | latest)	success	✅
lightning-fabric (GPUs) (testing Lightning | latest)	success	✅

These checks are required after the changes to src/lightning/fabric/strategies/xla.py, src/lightning/fabric/strategies/xla_fsdp.py, tests/tests_fabric/strategies/test_xla.py, tests/tests_fabric/utilities/test_distributed.py.

🟢 mypy

Check ID	Status
mypy	success	✅

These checks are required after the changes to src/lightning/fabric/strategies/xla.py, src/lightning/fabric/strategies/xla_fsdp.py, src/lightning/pytorch/demos/mnist_datamodule.py, src/lightning/pytorch/loops/utilities.py, src/lightning/pytorch/strategies/xla.py, src/lightning/pytorch/trainer/configuration_validator.py, src/lightning/pytorch/utilities/migration/utils.py.

🟢 install

Check ID	Status
install-pkg-guardian	success	✅

These checks are required after the changes to src/lightning/fabric/strategies/xla.py, src/lightning/fabric/strategies/xla_fsdp.py, src/lightning/pytorch/demos/mnist_datamodule.py, src/lightning/pytorch/loops/utilities.py, src/lightning/pytorch/strategies/xla.py, src/lightning/pytorch/trainer/configuration_validator.py, src/lightning/pytorch/utilities/migration/utils.py.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87%. Comparing base (efb02d7) to head (ad3bb3a).
⚠️ Report is 120 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #20769   +/-   ##
=======================================
  Coverage      87%      87%           
=======================================
  Files         268      268           
  Lines       23452    23384   -68     
=======================================
- Hits        20388    20330   -58     
+ Misses       3064     3054   -10