Fix v2.19.1 migration schema connection ownership

src/db/migrations.js

@@ -830,14 +830,13 @@ const VERSIONED_MIGRATIONS = [
     version: '2.19.1',
     label: 'v2.19.1 rebuild managed font references',
     run: async function (pool) {
-      const connection = await pool.getConnection();
       try {
-        await connection.beginTransaction();
-        await connection.query('DELETE FROM c_content_references WHERE reference_type = ?', ['font-family']);
+        await pool.beginTransaction();
+        await pool.query('DELETE FROM c_content_references WHERE reference_type = ?', ['font-family']);
 
         let lastSlideId = 0;
         while (true) {
-          const [slides] = await connection.query(
+          const [slides] = await pool.query(
             'SELECT id, content_json FROM c_slides WHERE id > ? AND content_json IS NOT NULL ORDER BY id ASC LIMIT 500',
             [lastSlideId]
           );
@@ -847,13 +846,13 @@ const VERSIONED_MIGRATIONS = [
             references.push.apply(references, collectContentReferences('slide', slide.id, parseJsonSafe(slide.content_json) || {})
               .filter(function (reference) { return reference.reference_type === 'font-family'; }));
           });
-          await insertContentReferences(connection, references);
+          await insertContentReferences(pool, references);
           lastSlideId = Number(slides[slides.length - 1].id);
         }
 
         let lastRegionId = 0;
         while (true) {
-          const [regions] = await connection.query(
+          const [regions] = await pool.query(
             'SELECT id, template_id, region_key, default_content_json FROM c_template_regions WHERE id > ? AND default_content_json IS NOT NULL ORDER BY id ASC LIMIT 500',
             [lastRegionId]
           );
@@ -865,16 +864,14 @@ const VERSIONED_MIGRATIONS = [
             references.push.apply(references, collectContentReferences('template', region.template_id, regionContent)
               .filter(function (reference) { return reference.reference_type === 'font-family'; }));
           });
-          await insertContentReferences(connection, references);
+          await insertContentReferences(pool, references);
           lastRegionId = Number(regions[regions.length - 1].id);
         }
 
-        await connection.commit();
+        await pool.commit();
       } catch (error) {
-        await connection.rollback();
+        await pool.rollback();
         throw error;
-      } finally {
-        connection.release();
       }
     }
   }