Merge pull request #460 from data-integrations/PLUGIN-1681-cherrypick

[🍒][PLUGIN-1681] Add macro support back for database config in postgres c…

Author: sahusanket

postgresql-plugin/src/main/java/io/cdap/plugin/postgres/PostgresConnectorConfig.java

@@ -17,6 +17,7 @@
 package io.cdap.plugin.postgres;
 
 import io.cdap.cdap.api.annotation.Description;
+import io.cdap.cdap.api.annotation.Macro;
 import io.cdap.cdap.api.annotation.Name;
 import io.cdap.plugin.db.connector.AbstractDBSpecificConnectorConfig;
 
@@ -38,6 +39,7 @@ public PostgresConnectorConfig(String host, int port, String user, String passwo
 
   @Name(NAME_DATABASE)
   @Description("Database to connect to.")
+  @Macro
   private String database;
 
   @Override