Rm 3.0 testing (log format differ, no longer maintained version)

Author: CharlesDelannoy

.github/workflows/continuous-integration-workflow.yml

@@ -32,7 +32,7 @@ jobs:
     strategy:
       matrix:
         postgres: [ 11.7, 12.14, 15.2 ]
-        ruby: [ 3.0, 3.1, 3.2 ]
+        ruby: [ 3.1, 3.2 ]
     services:
       postgres:
         image: postgres:${{ matrix.postgres }}