Update pom.xml version

Author: GtanSndil

pom.xml

@@ -6,7 +6,7 @@
 	<artifactId>metadata-api</artifactId>
 	<packaging>war</packaging>
 	<name>Implementation of the RMéS metadata API</name>
-	<version>3.8.3</version>
+	<version>3.8.4</version>
 	<properties>
 		<java.version>17</java.version>
 		<maven.compiler.source>${java.version}</maven.compiler.source>