ci: Test Emacs 30.1

Author: jcs090218

.github/workflows/test.yml

@@ -22,6 +22,7 @@ jobs:
           - 27.2
           - 28.2
           - 29.4
+          - 30.1
         experimental: [false]
         # TODO: enable once emacs snapshot version is fixed
         # For some reason takes too long to run, see