Try with MAGICK_HOME env variable.

.github/workflows/ci-mac-os.yml

@@ -14,7 +14,8 @@ on:
   schedule:
     # * is a special character in YAML so you have to quote this string
     # run at 02:01 on every 15th day-of-month.
-    - cron:  '1 2 */15 * *'    
+    - cron:  '1 2 */15 * *'
+
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
@@ -23,6 +24,9 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.10']
+    env:
+      # set env variable for Wand
+      MAGICK_HOME='/opt/homebrew'
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
     # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it