build(deps-dev): bump spring from 4.2.0 to 4.2.1

Bumps [spring](https://github.com/rails/spring) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/rails/spring/releases)
- [Changelog](https://github.com/rails/spring/blob/main/CHANGELOG.md)
- [Commits](rails/spring@v4.2.0...v4.2.1)

---
updated-dependencies:
- dependency-name: spring
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -541,7 +541,7 @@ GEM
       thor (~> 1.0)
       tilt (~> 2.0)
       yard (~> 0.9, >= 0.9.24)
-    spring (4.2.0)
+    spring (4.2.1)
     spring-commands-rspec (1.0.4)
       spring (>= 0.9.1)
     sshkey (3.0.0)