update java sdk to version 2.2.21 (#117)

Author: ahongbynder

README.md

@@ -89,25 +89,25 @@ Observable<Response<Void>> shareCollection(CollectionShareQuery collectionShareQ
 
 ### Using latest release
 
-The most recent release is Bynder Java SDK 2.2.20.
+The most recent release is Bynder Java SDK 2.2.21.
 
-- API Docs: http://www.javadoc.io/doc/com.bynder/bynder-java-sdk/2.2.20
+- API Docs: http://www.javadoc.io/doc/com.bynder/bynder-java-sdk/2.2.21
 
 To add a dependency on the SDK using Maven, use the following:
 
 ```xml
 <dependency>
   <groupId>com.bynder</groupId>
   <artifactId>bynder-java-sdk</artifactId>
-  <version>2.2.20</version>
+  <version>2.2.21</version>
 </dependency>
 ```
 
 To add a dependency using Gradle:
 
 ```
 dependencies {
-  implementation 'com.bynder:bynder-java-sdk:2.2.20'
+  implementation 'com.bynder:bynder-java-sdk:2.2.21'
 }
 ```
 

pom.xml

@@ -7,7 +7,7 @@
 
     <groupId>com.bynder</groupId>
     <artifactId>bynder-java-sdk</artifactId>
-    <version>2.2.20</version>
+    <version>2.2.21</version>
     <packaging>jar</packaging>
 
     <name>Bynder Java SDK</name>