Reduce GHA timeout for ember workflows

Author: mydea

.github/workflows/build.yml

@@ -386,7 +386,7 @@ jobs:
     name: Test @sentry/ember
     needs: [job_get_metadata, job_build]
     continue-on-error: true
-    timeout-minutes: 30
+    timeout-minutes: 10
     runs-on: ubuntu-latest
     strategy:
       matrix: