fix: mysqldump SSL and tablespace errors in snapshot

Add --ssl=false and --no-tablespaces flags to handle Docker MySQL
connections with self-signed certificates.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

files/custom/Espo/Modules/DataMigration/Api/Snapshot.php

@@ -39,7 +39,8 @@ class Snapshot implements Action
         $dumpFile = $snapshotDir . '/database.sql';
 
         $cmd = sprintf(
-            'mysqldump --host=%s --port=%s --user=%s --password=%s --single-transaction --quick %s > %s 2>&1',
+            'mysqldump --host=%s --port=%s --user=%s --password=%s'
+            . ' --ssl=false --no-tablespaces --single-transaction --quick %s > %s 2>&1',
             escapeshellarg($host),
             escapeshellarg($port),
             escapeshellarg($user),