ref: use macos 12 for testing dev-env (#50671)

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.github/workflows/development-environment.yml

@@ -30,8 +30,8 @@ jobs:
   # The bootstrap workflow (see last workflow) tests the experience of first time engineers
   docker-setup:
     name: Docker set up
-    runs-on: macos-11
-    timeout-minutes: 30
+    runs-on: macos-12
+    timeout-minutes: 40
     env:
       # Make the environment more similar to what Mac defaults to
       SHELL: /bin/zsh