Add Emacs 30.2 to CI matrix

Author: purcell

.github/workflows/test.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        emacs_version: [26.1, 26.2, 26.3, 27.1, 27.2, 28.1, 28.2, 29.1, 29.3, 30.1, snapshot]
+        emacs_version: [26.1, 26.2, 26.3, 27.1, 27.2, 28.1, 28.2, 29.1, 29.3, 30.1, 30.2, snapshot]
         experimental: [false]
 
         # Exclude Emacs versions that are unavailable on Apple Silicon