Update Ruby version for baseline tests

Signed-off-by: Martin Schurz <Martin.Schurz@telekom.de>

Author: schurzi

.github/workflows/baseline-test.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby-version: ['3.1', '3.2', '3.3']
+        ruby-version: ['3.2', '3.3', '3.4']
 
     steps:
     - uses: actions/checkout@v4