Bump toys from 0.15.3 to 0.15.4

Bumps [toys](https://github.com/dazuma/toys) from 0.15.3 to 0.15.4.
- [Release notes](https://github.com/dazuma/toys/releases)
- [Changelog](https://github.com/dazuma/toys/blob/main/toys/CHANGELOG.md)
- [Commits](dazuma/toys@toys/v0.15.3...toys/v0.15.4)

---
updated-dependencies:
- dependency-name: toys
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -115,9 +115,9 @@ GEM
       thor (>= 1.2.0)
       yard-sorbet
     thor (1.3.0)
-    toys (0.15.3)
-      toys-core (= 0.15.3)
-    toys-core (0.15.3)
+    toys (0.15.4)
+      toys-core (= 0.15.4)
+    toys-core (0.15.4)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.5.0)