Regenerate light cluster patch file

[BD103]

Objective

• CI on main has been failing since Move clustering-related types and functions into their own module. #13640 was merged.
  • Here's the offending run.
• One of the patch files is out of date, so it failed in the validation check.

Solution

• Regenerate the patch file. (The location has been moved to cluster/mod.rs.)

Testing

• Run git apply tools/example-showcase/reduce-light-cluster-config.patch
  • It should change bevy_pbr/src/cluster/mod.rs on line 239, decreasing total and z_slices.
• CI's validation checks should also verify that this works, though only after it gets merged.

[BD103]

The patch file was regenerated by manually modifying cluster/mod.rs, then running git diff > out.patch. If / when this happens again, the steps are pretty simple. :)