Add 90 minute limit for tests (#5851)

Occasionally a test will get stuck and run for 6 hours until Github cancels the workflow.
This reduces the timeout to 90 minutes to not waste resources.
Pybind11's tests seem to run in 30 minutes so this should be plenty of time.

.github/workflows/reusable-standard.yml

@@ -28,6 +28,7 @@ jobs:
   standard:
     name: 🧪
     runs-on: ${{ inputs.runs-on }}
+    timeout-minutes: 90
 
     steps:
       - uses: actions/checkout@v5