set macos timeout to 90

Author: kirklandsign

.github/workflows/_unittest.yml

@@ -50,6 +50,7 @@ jobs:
       python-version: '3.11'
       submodules: 'true'
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
+      timeout: 90
       script: |
         set -eux