Update CI

Author: DmitryTsepelev

.github/workflows/rspec.yml

@@ -19,14 +19,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [3.1, 3.2, 3.3]
+        ruby: [3.1, 3.2, 3.3, 3.4]
         gemfile: [
           "gemfiles/graphql_2_0_0.gemfile",
           "gemfiles/graphql_2_0_14.gemfile",
           "gemfiles/graphql_2_1_0.gemfile",
           "gemfiles/graphql_2_1_4.gemfile",
           "gemfiles/graphql_2_3_0.gemfile",
           "gemfiles/graphql_2_3_11.gemfile",
+          "gemfiles/graphql_2_4_8.gemfile",
           "gemfiles/graphql_master.gemfile"
         ]
         exclude:

.github/workflows/rubocop.yml

@@ -14,7 +14,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 3.0
+        ruby-version: 3.4
         bundler-cache: true
         bundler: 2.2.0
     - name: Lint Ruby code with RuboCop

gemfiles/graphql_2_4_8.gemfile

@@ -0,0 +1,5 @@
+source "https://rubygems.org"
+
+gem "graphql", "~> 2.4.8"
+
+gemspec path: "../"