build: set version to 4.5.0-SNAPSHOT

Author: javier-godoy

pom.xml

@@ -4,7 +4,7 @@
 
 	<groupId>org.vaadin.addons.flowingcode</groupId>
 	<artifactId>year-month-calendar</artifactId>
-	<version>4.4.1-SNAPSHOT</version>
+	<version>4.5.0-SNAPSHOT</version>
 	<name>Year Month Calendar Add-on</name>
 	<description>Year Month Calendar Add-on for Vaadin Flow</description>