Update .github/workflows/documentation.yml

Co-authored-by: Grégoire Paris <[email protected]>

Author: 2 people

.github/workflows/documentation.yml

@@ -35,4 +35,4 @@ jobs:
           dependency-versions: "highest"
 
       - name: "Run guides-cli"
-        run: "vendor/bin/guides -vvv --no-progress docs/en /tmp/test 2>&1 | ( ! grep WARNING )"
+        run: "vendor/bin/guides -vvv --no-progress docs/en /tmp/test --fail-on-log"