Bump rmagick from 4.2.5 to 4.2.6
Bump rmagick from 4.2.5 to 4.2.6

Bumps [rmagick](https://github.com/rmagick/rmagick) from 4.2.5 to 4.2.6.
- [Release notes](https://github.com/rmagick/rmagick/releases)
- [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-patch
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
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