Update graphql requirement from ~> 2.0.27 to >= 2.0.27, < 2.2.0

Updates the requirements on [graphql](https://github.com/rmosolgo/graphql-ruby) to permit the latest version.
- [Release notes](https://github.com/rmosolgo/graphql-ruby/releases)
- [Changelog](https://github.com/rmosolgo/graphql-ruby/blob/master/CHANGELOG.md)
- [Commits](rmosolgo/graphql-ruby@v2.0.27...v2.1.5)

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

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

Gemfile.lock

@@ -2,7 +2,7 @@ PATH
   remote: .
   specs:
     up_for_grabs_tooling (0.2.0)
-      graphql (~> 2.0.27)
+      graphql (>= 2.0.27, < 2.2.0)
       graphql-client (~> 0.18)
       json_schemer (>= 0.2, < 3.0)
       octokit (>= 5.6, < 8.0)
@@ -27,7 +27,8 @@ GEM
       faraday-net_http (>= 2.0, < 3.1)
       ruby2_keywords (>= 0.0.4)
     faraday-net_http (3.0.2)
-    graphql (2.0.27)
+    graphql (2.1.5)
+      racc (~> 1.4)
     graphql-client (0.18.0)
       activesupport (>= 3.0)
       graphql

up_for_grabs_tooling.gemspec

@@ -15,6 +15,6 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'safe_yaml', '~> 1.0'
   s.add_runtime_dependency 'octokit', '>= 5.6', '< 8.0'
   s.add_runtime_dependency 'graphql-client', '~> 0.18'
-  s.add_runtime_dependency 'graphql', '~> 2.0.27'
+  s.add_runtime_dependency 'graphql', '>= 2.0.27', '< 2.2.0'
   s.add_runtime_dependency 'json_schemer', '>= 0.2', '< 3.0'
 end