chore(deps): update dependency slather to v2.8.5 (#399)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [slather](https://github.com/SlatherOrg/slather) | `2.8.4` -> `2.8.5` | [![age](https://developer.mend.io/api/mc/badges/age/rubygems/slather/2.8.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/rubygems/slather/2.8.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/rubygems/slather/2.8.4/2.8.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/rubygems/slather/2.8.4/2.8.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>SlatherOrg/slather (slather)</summary>

### [`v2.8.5`](https://github.com/SlatherOrg/slather/blob/HEAD/CHANGELOG.md#v285)

[Compare Source](https://github.com/SlatherOrg/slather/compare/v2.8.4...v2.8.5)

-   Update xcodeproj to 1.27.1 to support Xcode 16 folder references
    [authiatr](https://github.com/authiatr)
    [#&#8203;574](https://github.com/SlatherOrg/slather/pull/574)

</details>

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Gemfile.lock

@@ -113,12 +113,12 @@ GEM
     sassc (2.4.0)
       ffi (~> 1.9)
     securerandom (0.3.1)
-    slather (2.8.4)
+    slather (2.8.5)
       CFPropertyList (>= 2.2, < 4)
       activesupport
       clamp (~> 1.3)
       nokogiri (>= 1.14.3)
-      xcodeproj (~> 1.25)
+      xcodeproj (~> 1.27)
     sqlite3 (1.7.3)
       mini_portile2 (~> 2.8.0)
     typhoeus (1.4.1)