Fix lost form submissions on archives, the unlocked update finish and six more

Update Symfony to 7.4.23 (12 advisories in 8 packages).

- A form can be sent from /beitraege, /kategorie/... and /schlagwort/...;
  it answered 404 before anything was stored or mailed.
- Booleans reach the database as integers, so MySQL in strict mode
  accepts form submissions, task switches and plugin states.
- A stepped form with a required multiple choice shows its message
  instead of stopping on a TypeError.
- The second update step runs under the update lock; a concurrent
  finish no longer rolls a successful update back.
- Accordion entries and gallery images can be selected from the
  editor panel again.
- Category and tag names are escaped in the archive heading.
- Restoring a published page from the bin needs the publisher role.

Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>

src/Content/FormRepository.php

@@ -707,7 +707,10 @@ final class FormRepository
             'id' => $id, 'form_id' => $formId,
             'data' => json_encode($values, JSON_THROW_ON_ERROR | JSON_UNESCAPED_UNICODE),
             'sender_hash' => $senderHash, 'created_at' => $now,
-            'consent_at' => $consent ? $now : null, 'delivered' => false,
+            'consent_at' => $consent ? $now : null,
+            // Als Zahl: ohne Typangabe wird false als leere Zeichenkette gebunden, und MySQL im
+            // Strict-Modus lehnt die für eine Zahlenspalte ab. SQLite nimmt beides.
+            'delivered' => 0,
         ]);
 
         return $id;
@@ -715,7 +718,7 @@ final class FormRepository
 
     public function markDelivered(string $submissionId): void
     {
-        $this->db->executeStatement('UPDATE form_submission SET delivered = ? WHERE id = ?', [true, $submissionId]);
+        $this->db->executeStatement('UPDATE form_submission SET delivered = ? WHERE id = ?', [1, $submissionId]);
     }
 
     /**