fix: deprecated s.o base image for github workflows

Author: Adriano Santos

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ on:
 
 jobs:
   check_format:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     name: Check format
     steps:
       - uses: actions/checkout@v3