Fix typo

Author: vmcj

.github/workflows/autoconf-check.yml

@@ -69,7 +69,7 @@ jobs:
       - name: Unpack the "Release" tarball
         run: tar xvf release.tar.gz
       - name: Setup image and run bats tests
-        workdir: domjudge
+        working-directory: domjudge
         run: .github/jobs/configure-checks/setup_configure_image.sh
 
 #name: Build and Trigger Workflows