Merge branch 'ci/bump-pt-2.6' of https://github.com/Lightning-AI/lightning into ci/bump-pt-2.6

Author: Borda

requirements/pytorch/check-avail-extras.py

@@ -4,7 +4,7 @@
     import matplotlib  # noqa: F401
     import omegaconf  # noqa: F401
     import rich  # noqa: F401
+    import torch
 
-    import torch  # noqa: F401
     if torch.cuda.is_available():
         import bitsandbytes  # noqa: F401