👷 Update Ruby to Version 3.4

Signed-off-by: Pascal Marco Caversaccio <pascal.caversaccio@hotmail.ch>

Author: pcaversaccio

.github/workflows/checks.yml

@@ -75,7 +75,7 @@ jobs:
         os:
           - ubuntu-latest
         ruby_version:
-          - 3.3
+          - 3.4
 
     steps:
       - name: Checkout