Test on Emacs 29.4

Author: joaotavora

.github/workflows/test.yml

@@ -17,9 +17,9 @@ jobs:
       matrix:
         emacs_version:
         - 26.3
-        - 27.2
         - 28.2
-        # - snapshot
+        - 29.4
+        - snapshot
 
     steps:
     - uses: actions/checkout@v2