Remove Ruby 3.0 from the ruby-version matrix.

Author: CraigJZ

.github/workflows/test_suite.yml

@@ -19,7 +19,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby-version: [ '3.3', '3.2', '3.1', '3.0' ]
+        ruby-version: [ '3.3', '3.2', '3.1' ]
 
     steps:
       - uses: actions/checkout@v3