Bump zeitwerk from 2.6.13 to 2.6.18

Bumps [zeitwerk](https://github.com/fxn/zeitwerk) from 2.6.13 to 2.6.18.
- [Changelog](https://github.com/fxn/zeitwerk/blob/main/CHANGELOG.md)
- [Commits](fxn/zeitwerk@v2.6.13...v2.6.18)

---
updated-dependencies:
- dependency-name: zeitwerk
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -89,7 +89,7 @@ GEM
       lint_roller (~> 1.1)
       rubocop-performance (~> 1.20.2)
     unicode-display_width (2.5.0)
-    zeitwerk (2.6.13)
+    zeitwerk (2.6.18)
 
 PLATFORMS
   arm64-darwin-23