🔖 [RELEASE] Bump and release version 21.9.0

Signed-off-by: palexdev <alessandro.parisi406@gmail.com>

Author: palexdev

gradle.properties

@@ -4,7 +4,6 @@
 #--------------------------------------#
 GROUP=io.github.palexdev
 POM_ARTIFACT_ID=virtualizedfx
-VERSION_NAME=21.8.4
 POM_NAME=virtualizedfx
 POM_DESCRIPTION=Alternative VirtualFlows for JavaFX
 POM_INCEPTION_YEAR=2021
@@ -20,7 +19,8 @@ POM_PACKAGING=jar
 #--------------------------------------#
 # Versions                             #
 #--------------------------------------#
-vfx=21.8.4
+VERSION_NAME=21.9.0
+vfx=21.9.0
 jdk=21
 
 # Plugins