Change Import Error Message

[justusschock]

What does this PR do?

Changes the wording of the import error to not be XLA specific anymore

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---

📚 Documentation preview 📚: https://pytorch-lightning--21369.org.readthedocs.build/en/21369/

[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/utilities/imports.py.

🟢 pytorch_lightning: lit GPU

Check ID	Status
pytorch.yml / Lit Job (nvidia/cuda:12.1.1-devel-ubuntu22.04, pytorch, 3.10)	success	✅
pytorch.yml / Lit Job (lightning, 3.12)	success	✅
pytorch.yml / Lit Job (pytorch, 3.12)	success	✅

These checks are required after the changes to src/lightning/fabric/utilities/imports.py.

🟢 Benchmarks

Check ID	Status
benchmark.yml / Lit Job (fabric)	success	✅
benchmark.yml / Lit Job (pytorch)	success	✅

These checks are required after the changes to src/lightning/fabric/utilities/imports.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/utilities/imports.py.

🟢 lightning_fabric: CPU workflow

Check ID	Status
fabric-cpu-guardian	success	✅

These checks are required after the changes to src/lightning/fabric/utilities/imports.py.

🟢 lightning_fabric: lit GPU

Check ID	Status
fabric.yml / Lit Job (nvidia/cuda:12.1.1-devel-ubuntu22.04, fabric, 3.10)	success	✅
fabric.yml / Lit Job (fabric, 3.12)	success	✅
fabric.yml / Lit Job (lightning, 3.12)	success	✅

These checks are required after the changes to src/lightning/fabric/utilities/imports.py.

🟢 mypy

Check ID	Status
mypy	success	✅

These checks are required after the changes to src/lightning/fabric/utilities/imports.py.

🟢 install

Check ID	Status
install-pkg-guardian	success	✅

These checks are required after the changes to src/lightning/fabric/utilities/imports.py.

---

Thank you for your contribution! 💜

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89%. Comparing base (eec92a9) to head (39691af).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #21369   +/-   ##
=======================================
  Coverage      89%      89%           
=======================================
  Files         269      269           
  Lines       22050    22050           
=======================================
  Hits        19724    19724           
  Misses       2326     2326