Bump mini_magick from 4.12.0 to 4.13.0 (#152)

Bumps [mini_magick](https://github.com/minimagick/minimagick) from 4.12.0 to 4.13.0.
- [Release notes](https://github.com/minimagick/minimagick/releases)
- [Commits](minimagick/minimagick@v4.12.0...v4.13.0)

---
updated-dependencies:
- dependency-name: mini_magick
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -10,7 +10,7 @@ GEM
  language_server-protocol (3.17.0.3)
  logger (1.6.0)
  method_source (1.0.0)
- mini_magick (4.12.0)
+ mini_magick (4.13.0)
  mini_portile2 (2.8.7)
  multi_json (1.15.0)
  mustermann (3.0.0)