Bump com.enonic.xp.app from 3.3.0 to 3.4.0

Bumps com.enonic.xp.app from 3.3.0 to 3.4.0.

---
updated-dependencies:
- dependency-name: com.enonic.xp.app
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle

@@ -1,7 +1,7 @@
 plugins {
     id 'maven-publish'
     id 'com.enonic.defaults' version '2.1.2'
-    id 'com.enonic.xp.app' version '3.3.0'
+    id 'com.enonic.xp.app' version '3.4.0'
 }
 
 app {