Bump graphql-client from 0.18.0 to 0.20.0 (#348)

Bumps [graphql-client](https://github.com/github-community-projects/graphql-client) from 0.18.0 to 0.20.0.
- [Commits](https://github.com/github-community-projects/graphql-client/commits/v0.20.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Brendan Forster <[email protected]>

Gemfile.lock

@@ -11,25 +11,34 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (7.0.7.2)
+    activesupport (7.1.3)
+      base64
+      bigdecimal
       concurrent-ruby (~> 1.0, >= 1.0.2)
+      connection_pool (>= 2.2.5)
+      drb
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
+      mutex_m
       tzinfo (~> 2.0)
     addressable (2.8.6)
       public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.2)
     base64 (0.2.0)
-    concurrent-ruby (1.2.2)
+    bigdecimal (3.1.6)
+    concurrent-ruby (1.2.3)
+    connection_pool (2.4.1)
     docile (1.4.0)
+    drb (2.2.0)
+      ruby2_keywords
     faraday (2.9.0)
       faraday-net_http (>= 2.0, < 3.2)
     faraday-net_http (3.1.0)
       net-http
-    graphql (2.0.27)
-    graphql-client (0.18.0)
+    graphql (2.0.28)
+    graphql-client (0.20.0)
       activesupport (>= 3.0)
-      graphql
+      graphql (>= 1.13.0)
     hana (1.3.7)
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
@@ -42,6 +51,7 @@ GEM
     minitest (5.22.2)
     mocha (2.1.0)
       ruby2_keywords (>= 0.0.5)
+    mutex_m (0.2.0)
     net-http (0.4.1)
       uri
     octokit (8.1.0)