chore(mobile-ios): update dependency slather to v2.8.5 (#20335)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

mobile/mobile-ios/Gemfile

@@ -4,4 +4,4 @@ source 'https://rubygems.org'
 
 ruby '3.3.6'
 
-gem 'slather', '2.8.4'
+gem 'slather', '2.8.5'

mobile/mobile-ios/Gemfile.lock

@@ -28,7 +28,7 @@ GEM
       concurrent-ruby (~> 1.0)
     minitest (5.23.1)
     mutex_m (0.2.0)
-    nanaimo (0.3.0)
+    nanaimo (0.4.0)
     nkf (0.2.0)
     nokogiri (1.16.7-arm64-darwin)
       racc (~> 1.4)
@@ -38,29 +38,29 @@ GEM
       racc (~> 1.4)
     racc (1.8.0)
     rexml (3.3.7)
-    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)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    xcodeproj (1.25.0)
+    xcodeproj (1.27.0)
       CFPropertyList (>= 2.3.3, < 4.0)
       atomos (~> 0.1.3)
       claide (>= 1.0.2, < 2.0)
       colored2 (~> 3.1)
-      nanaimo (~> 0.3.0)
-      rexml (>= 3.3.2, < 4.0)
+      nanaimo (~> 0.4.0)
+      rexml (>= 3.3.6, < 4.0)
 
 PLATFORMS
   arm64-darwin-23
   x86_64-darwin-21
   x86_64-linux
 
 DEPENDENCIES
-  slather (= 2.8.4)
+  slather (= 2.8.5)
 
 RUBY VERSION
    ruby 3.3.6p108