doc(Debezium): remove extra quote

Author: wrussell1999

plugin-debezium-postgres/src/main/java/io/kestra/plugin/debezium/postgres/Trigger.java

@@ -31,7 +31,7 @@
         @Example(
             full = true,
             title = "Consume a message from a PostgreSQL database via change data capture periodically.",
-            code = """"
+            code = """
                 id: pg_trigger
                 namespace: company.team