fix check for flaky links in readme

[Borda]

What does this PR do?

Get back green checks on the merged commit to better trace when something broke

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📚 Documentation preview 📚: https://pytorch-lightning--20910.org.readthedocs.build/en/20910/

cc @Borda

[github-actions]

⚡ Required checks status: All passing 🟢

Groups summary

🟢 fabric: Docs

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

These checks are required after the changes to docs/source-fabric/_templates/theme_variables.jinja, docs/source-fabric/advanced/compile.rst, docs/source-fabric/advanced/multiple_setup.rst, docs/source-fabric/examples/index.rst, docs/source-fabric/fundamentals/convert.rst.

🟢 pytorch_lightning: Docs

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

These checks are required after the changes to docs/source-pytorch/_templates/theme_variables.jinja, docs/source-pytorch/advanced/compile.rst, docs/source-pytorch/community/governance.rst.

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Thank you for your contribution! 💜

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[Borda]

need to run all with Lightning-AI/utilities#408