fix(ci): Stop bash -e from killing the conflict check silently

The `pacman -S` in the conflict check exits non-zero by design (a
conflict fails in prepare, a clean list fails at the disabled download),
and `OUT=$(...)` carries that status, so `bash -e` aborted the step
before the output was inspected: exit 1 with no message on every run.
Ignore the status and judge by the output, as intended.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitea/workflows/tests.yaml

@@ -350,7 +350,9 @@ jobs:
           if [ ${#PKGS[@]} -eq 0 ]; then
             echo "✅ No resolvable packages to check."
           else
-            OUT=$(pac -S --noconfirm --root "$ROOT" --cachedir "$ROOT" "${PKGS[@]}" 2>&1)
+            # pacman exits non-zero either way; judge by its output, not
+            # its status (bash -e would otherwise kill the step silently)
+            OUT=$(pac -S --noconfirm --root "$ROOT" --cachedir "$ROOT" "${PKGS[@]}" 2>&1) || true
             if grep -q 'failed to prepare transaction' <<< "$OUT"; then
               echo "------- Pacman Output -------"
               grep -vE '^(http|file|ftp)' <<< "$OUT" | tail -40