debug session (2x)

- MariadbSessionStorage not found error fix.

webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/MariadbSessionStorage.kt

@@ -25,6 +25,7 @@ class MariadbSessionStorage: SessionStorage {
     }
 
     override suspend fun write(id: String, value: String) {
+        return transaction {
             val session = Session.find(SessionTable.key eq id).firstOrNull()
 
             if (session == null) {
@@ -37,3 +38,4 @@ class MariadbSessionStorage: SessionStorage {
             }
         }
     }
+}