Bump psych from 5.1.2 to 5.2.1

Bumps [psych](https://github.com/ruby/psych) from 5.1.2 to 5.2.1.
- [Release notes](https://github.com/ruby/psych/releases)
- [Commits](ruby/psych@v5.1.2...v5.2.1)

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

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

Gemfile.lock

@@ -272,7 +272,8 @@ GEM
       railties (>= 7.0.0)
     protected_attributes_continued (1.9.0)
       activemodel (>= 5.0)
-    psych (5.2.0)
+    psych (5.2.1)
+      date
       stringio
     public_suffix (6.0.1)
     puma (6.5.0)