Bump rmagick from 5.3.0 to 6.1.0 (#23994)

Bumps [rmagick](https://github.com/rmagick/rmagick) from 5.3.0 to 6.1.0.
- [Changelog](https://github.com/rmagick/rmagick/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rmagick/rmagick/commits)

---
updated-dependencies:
- dependency-name: rmagick
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -22,5 +22,5 @@ gem 'rubocop-rake', '~> 0.6'
 gem 'xcpretty-travis-formatter'
 
 group :screenshots, optional: true do
-  gem 'rmagick', '~> 5.3.0'
+  gem 'rmagick', '~> 6.1.0'
 end

Gemfile.lock

@@ -304,6 +304,7 @@ GEM
     nokogiri (1.17.2)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
+    observer (0.1.2)
     octokit (6.1.1)
       faraday (>= 1, < 3)
       sawyer (~> 0.9)
@@ -315,7 +316,7 @@ GEM
     parser (3.3.7.0)
       ast (~> 2.4.1)
       racc
-    pkg-config (1.5.7)
+    pkg-config (1.5.9)
     plist (3.7.1)
     progress_bar (1.3.4)
       highline (>= 1.6)
@@ -335,7 +336,8 @@ GEM
       uber (< 0.2.0)
     retriable (3.1.2)
     rexml (3.4.0)
-    rmagick (5.3.0)
+    rmagick (6.1.0)
+      observer (~> 0.1)
       pkg-config (~> 1.4)
     rouge (3.28.0)
     rubocop (1.71.0)
@@ -409,7 +411,7 @@ DEPENDENCIES
   fastlane-plugin-sentry
   fastlane-plugin-wpmreleasetoolkit (~> 12.4)
   rake
-  rmagick (~> 5.3.0)
+  rmagick (~> 6.1.0)
   rubocop (~> 1.71)
   rubocop-rake (~> 0.6)
   xcpretty-travis-formatter