build(deps, e2e): use current stable version of ruby

Author: mikehardy

.github/workflows/tests_e2e_ios.yml

@@ -83,6 +83,11 @@ jobs:
           max_attempts: 3
           command: yarn --no-audit --prefer-offline
 
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3
+
       - name: Update Ruby build tools
         uses: nick-invision/retry@v2
         with: