chore: Extend examples timeout (#5504)

### Description

We get a lot of timeout failures on examples tests. Since this almost
always requires re-running the test, which adds another 30 minutes of
compute time, it's probably better to extend the timeout to 40 minutes.

### Testing Instructions

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Co-authored-by: nicholaslyang <Nicholas Yang>

.github/workflows/test.yml

@@ -309,7 +309,7 @@ jobs:
     name: Turborepo Examples
     needs: determine_jobs
     if: needs.determine_jobs.outputs.examples == 'true'
-    timeout-minutes: 30
+    timeout-minutes: 40
 
     strategy:
       fail-fast: false