rollback version

Author: vicorrea25

README.md

@@ -20,7 +20,7 @@ already.
 <dependency>
     <groupId>com.mercadopago</groupId>
     <artifactId>sdk-java</artifactId>
-    <version>2.1.29</version>
+    <version>2.1.28</version>
 </dependency>
   ```
 

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>com.mercadopago</groupId>
     <artifactId>sdk-java</artifactId>
-    <version>2.1.29</version>
+    <version>2.1.28</version>
     <packaging>jar</packaging>
 
     <name>Mercadopago SDK</name>

src/main/java/com/mercadopago/MercadoPagoConfig.java

@@ -15,7 +15,7 @@
 /** Mercado Pago configuration class. */
 public class MercadoPagoConfig {
 
-  public static final String CURRENT_VERSION = "2.1.29";
+  public static final String CURRENT_VERSION = "2.1.28";
 
   public static final String PRODUCT_ID = "BC32A7VTRPP001U8NHJ0";