Bump concurrent-ruby in the bundler group across 1 directory

Bumps the bundler group with 1 update in the / directory: [concurrent-ruby](https://github.com/ruby-concurrency/concurrent-ruby).


Updates `concurrent-ruby` from 1.3.6 to 1.3.7
- [Release notes](https://github.com/ruby-concurrency/concurrent-ruby/releases)
- [Changelog](https://github.com/ruby-concurrency/concurrent-ruby/blob/master/CHANGELOG.md)
- [Commits](ruby-concurrency/concurrent-ruby@v1.3.6...v1.3.7)

---
updated-dependencies:
- dependency-name: concurrent-ruby
  dependency-version: 1.3.7
  dependency-type: indirect
  dependency-group: bundler
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -32,7 +32,7 @@ GEM
     base64 (0.3.0)
     bigdecimal (4.1.2)
     builder (3.3.0)
-    concurrent-ruby (1.3.6)
+    concurrent-ruby (1.3.7)
     connection_pool (3.0.2)
     crass (1.0.6)
     drb (2.2.3)