Update version number

Author: jimsch

README.md

@@ -16,7 +16,7 @@ To add this library to a Maven project, add the following to the `dependencies`
 <dependency>
   <groupId>com.augustcellars.cose</groupId>
   <artifactId>cose-java</artifactId>
-  <version>0.9.3</version>
+  <version>0.9.4</version>
 </dependency>
 ```
 

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.augustcellars.cose</groupId>
     <artifactId>cose-java</artifactId>
-    <version>0.9.4-snapshot</version>
+    <version>0.9.4</version>
 
     <name>com.augustcellars.cose:cose-java</name>
     <description>A Java implementation that supports the COSE secure message specification.</description>