ci: Remove test on macos 27.x

Author: jcs090218

.github/workflows/test.yml

@@ -11,11 +11,16 @@ 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