Bump rmagick from 5.3.0 to 5.4.1

Bumps [rmagick](https://github.com/rmagick/rmagick) from 5.3.0 to 5.4.1.
- [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:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -20,6 +20,7 @@ GEM
     iniparse (1.5.0)
     json (2.7.1)
     language_server-protocol (3.17.0.3)
+    observer (0.1.2)
     overcommit (0.62.0)
       childprocess (>= 0.6.3, < 6)
       iniparse (~> 1.4)
@@ -42,7 +43,8 @@ GEM
     rake (13.1.0)
     regexp_parser (2.9.0)
     rexml (3.2.6)
-    rmagick (5.3.0)
+    rmagick (5.4.1)
+      observer (~> 0.1)
       pkg-config (~> 1.4)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)