Update concurrent-ruby requirement from 1.3.4 to 1.3.5

Updates the requirements on [concurrent-ruby](https://github.com/ruby-concurrency/concurrent-ruby) to permit the latest version.
- [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@v1.3.4...v1.3.5)

---
updated-dependencies:
- dependency-name: concurrent-ruby
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Gemfile

@@ -13,7 +13,7 @@ gem 'minitest', '~> 5.0'
 
 # This fix is temporary until the next release of the gem
 # See https://stackoverflow.com/questions/79360526/uninitialized-constant-activesupportloggerthreadsafelevellogger-nameerror
-gem 'concurrent-ruby', '1.3.4'
+gem 'concurrent-ruby', '1.3.6'
 
 group :development do
   gem 'gem-release'