Add a 60 min default timeout to xcat_test

Looks like this actions hangs from time to time. Let's use a reasonable default to get faster failing messages.

.github/workflows/xcat_test.yml

@@ -3,6 +3,7 @@ on: [pull_request, workflow_dispatch]
 jobs:
   xcat_pr_test:
     runs-on: ubuntu-20.04
+    timeout-minutes: 60
     steps:
       - uses: actions/checkout@v4
       - run: sudo apt-get install -y fakeroot reprepro devscripts debhelper libcapture-tiny-perl libjson-perl libsoap-lite-perl libdbi-perl libcgi-pm-perl quilt openssh-server dpkg looptools genometools software-properties-common