ci: Use exclude rule instead

Author: jcs090218

.github/workflows/test.yml

@@ -11,16 +11,11 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
         emacs-version:
+          - 27.2
           - 28.2
           - 29.3
         experimental: [false]
         include:
-          - os: ubuntu-latest
-            emacs-version: 27.2
-            experimental: false
-          - os: windows-latest
-            emacs-version: 27.2
-            experimental: false
           - os: ubuntu-latest
             emacs-version: snapshot
             experimental: true
@@ -30,6 +25,9 @@ jobs:
           - os: windows-latest
             emacs-version: snapshot
             experimental: true
+        exclude:
+          - os: macos-latest
+            emacs-version: 27.2
 
     steps:
       - uses: actions/checkout@v4