revert heavydebug logging for 3.12 in GHA

.github/workflows/main.yml

@@ -86,12 +86,7 @@ jobs:
             python bin/fail2ban-testcases --verbosity=2
           else
             echo "Skip systemd backend since systemd-python module must be fixed for python >= v.3.10 in GHA ..."
-            if dpkg --compare-versions "$F2B_PYV" lt 3.12; then
             python bin/fail2ban-testcases --verbosity=2 -i "[sS]ystemd|[jJ]ournal"
-            else
-            # need heavydebug for 3.12 to find error in testSetupInstallRoot:
-            python bin/fail2ban-testcases -l 5 --verbosity=2 -i "[sS]ystemd|[jJ]ournal"
-            fi
           fi
 
       #- name: Test suite (debug some systemd tests only)