Show current GHA prompts

Author: vmcj

.github/jobs/unit-tests.sh

@@ -1,5 +1,10 @@
 #!/bin/bash
 
+echo "$PS0"
+echo "$PS1"
+echo "$PS2"
+echo "$PS4"
+
 git config --global --add safe.directory /__w/domjudge/domjudge
 
 . .github/jobs/data/gha_ci_bashrc