pom: Update version to 2.0.0-alpha.4

Author: bertrand-lorentz

pom.xml

@@ -3,7 +3,7 @@
 
   <groupId>eu.europa.ted.eforms</groupId>
   <artifactId>efx-toolkit-java</artifactId>
-  <version>2.0.0-SNAPSHOT</version>
+  <version>2.0.0-alpha.4</version>
   <packaging>jar</packaging>
 
   <name>EFX Toolkit for Java</name>
@@ -49,7 +49,7 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <project.build.outputTimestamp>2023-07-28T16:03:53Z</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2024-08-02T09:53:37Z</project.build.outputTimestamp>
 
     <sonatype.server.url>s01.oss.sonatype.org</sonatype.server.url>