update ruby version for github tests

Author: drusepth

.github/workflows/tests.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.7.4
+        ruby-version: 3.2
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
     - name: Set up Node
       uses: actions/setup-node@v1