Bump json_schemer from 2.0.0 to 2.1.0

Bumps [json_schemer](https://github.com/davishmcclurg/json_schemer) from 2.0.0 to 2.1.0.
- [Changelog](https://github.com/davishmcclurg/json_schemer/blob/main/CHANGELOG.md)
- [Commits](https://github.com/davishmcclurg/json_schemer/compare/v2.0.0...v2.1.0)

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

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

Gemfile.lock

@@ -201,7 +201,7 @@ GEM
     js-routes (2.2.8)
       railties (>= 4)
     json (2.6.3)
-    json_schemer (2.0.0)
+    json_schemer (2.1.0)
       hana (~> 1.3)
       regexp_parser (~> 2.0)
       simpleidn (~> 0.2)
@@ -529,7 +529,7 @@ GEM
       concurrent-ruby (~> 1.0)
     unf (0.1.4)
       unf_ext
-    unf_ext (0.0.9)
+    unf_ext (0.0.9.1)
     unicode-display_width (2.5.0)
     version_gem (1.1.3)
     web-console (4.2.1)