test: enable TEST-06-SELINUX in openSUSE

openSUSE switched to SELinux by default for quite some time now, so this test is
also successful.

.github/workflows/mkosi.yml

@@ -137,7 +137,7 @@ jobs:
             sanitizers: ""
             llvm: 0
             cflags: "-Og"
-            relabel: no
+            relabel: yes
             vm: 0
             no_qemu: 0
             no_kvm: 0

test/integration-tests/integration-test-wrapper.py

@@ -445,8 +445,8 @@ def main() -> None:
     summary = Summary.get(args)
 
     # Keep list in sync with TEST-06-SELINUX.sh
-    if args.name == 'TEST-06-SELINUX' and summary.distribution not in ('fedora', 'centos'):
-        print('Skipping TEST-06-SELINUX, only enabled for Fedora/CentOS', file=sys.stderr)
+    if args.name == 'TEST-06-SELINUX' and summary.distribution not in ('centos', 'fedora', 'opensuse'):
+        print('Skipping TEST-06-SELINUX, only enabled for CentOS/Fedora/openSUSE', file=sys.stderr)
         exit(77)
 
     if shell and not sys.stdin.isatty():

test/units/TEST-06-SELINUX.sh

@@ -4,8 +4,8 @@ set -eux
 set -o pipefail
 
 . /etc/os-release
-if ! [[ "$ID" =~ centos|fedora ]]; then
-    echo "Skipping because only CentOS and Fedora support SELinux tests" >>/skipped
+if ! [[ "$ID" =~ centos|fedora|opensuse ]]; then
+    echo "Skipping because only CentOS, Fedora and openSUSE support SELinux tests" >>/skipped
     exit 77
 fi