Set a shorter timeout on this build (6h by default). (#1501)

JulienPalard · web-flow · commit 02264afd6e44 · 2020-12-14T11:01:33.000+01:00
Automerge of PR #1501 by @JulienPalard It should not take long, but we've seen it timeouting (probably for another reason that really taking 6+ hours), so a shorter timeout may be sane here.
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
@@ -58,6 +58,7 @@ jobs:
   sphinx:
     name: 'Génération de la doc (sphinx)'
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     steps:
       - uses: actions/checkout@v2
       - uses: actions/cache@v2
