Bump rubytree from 2.1.0 to 2.1.1

Bumps [rubytree](https://github.com/evolve75/RubyTree) from 2.1.0 to 2.1.1.
- [Release notes](https://github.com/evolve75/RubyTree/releases)
- [Changelog](https://github.com/evolve75/RubyTree/blob/master/API-CHANGES.md)
- [Commits](evolve75/RubyTree@R2.1.0...R2.1.1)

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -221,7 +221,7 @@ GEM
     js-routes (2.3.4)
       railties (>= 5)
       sorbet-runtime
-    json (2.9.0)
+    json (2.9.1)
     json_schemer (2.3.0)
       bigdecimal
       hana (~> 1.3)
@@ -465,8 +465,8 @@ GEM
     ruby-vips (2.2.2)
       ffi (~> 1.12)
       logger
-    rubytree (2.1.0)
-      json (~> 2.0, > 2.3.1)
+    rubytree (2.1.1)
+      json (~> 2.0, > 2.9)
     rubyzip (2.3.2)
     safety_net_attestation (0.4.0)
       jwt (~> 2.0)