Update egui_tiles to fix crash (#2598)

Closes #2593
* #2593

This is what is new:
* rerun-io/egui_tiles#8

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [x] I've included a screenshot or gif (if applicable)
* [x] I have tested [demo.rerun.io](https://demo.rerun.io/pr/2598) (if
applicable)

- [PR Build Summary](https://build.rerun.io/pr/2598)
- [Docs
preview](https://rerun.io/preview/pr%3Aemilk%2Fbump-egui-tiles/docs)
- [Examples
preview](https://rerun.io/preview/pr%3Aemilk%2Fbump-egui-tiles/examples)

Cargo.toml

@@ -145,4 +145,4 @@ debug = true
 # As a last resport, patch with a commit to our own repository.
 # ALWAYS document what PR the commit hash is part of, or when it was merged into the upstream trunk.
 
-egui_tiles = { git = "https://github.com/rerun-io/egui_tiles.git", rev = "3fff2b01310aa3569e29d2dd3ee97b2e62c45870" } # 2023-06-29: drag-and-drop fixes
+egui_tiles = { git = "https://github.com/rerun-io/egui_tiles.git", rev = "cc97c9c977270108d9d644c0d425cd6bead3beb7" } # 2023-07-04: visibility toggle crash fix

Cranky.toml

@@ -15,6 +15,7 @@ warn = [
   "clippy::bool_to_int_with_if",
   "clippy::char_lit_as_u8",
   "clippy::checked_conversions",
+  "clippy::cloned_instead_of_copied",
   "clippy::dbg_macro",
   "clippy::debug_assert_with_mut_call",
   "clippy::derive_partial_eq_without_eq",