Upgrade to Spring Modulith 1.4.0

See gh-1815

Signed-off-by: ferclager <17533449+ferclager@users.noreply.github.com>

Author: ferclager

start-site/src/main/resources/application.yml

@@ -141,7 +141,7 @@ initializr:
           - compatibilityRange: "[3.4.0,3.5.0-M1)"
             version: 1.3.5
           - compatibilityRange: "[3.5.0-M1,3.6.0-M1)"
-            version: 1.4.0-RC1
+            version: 1.4.0
             repositories:
               - spring-milestones
       spring-shell: