Prep for 3.4.0

Author: ultraq

build.gradle

@@ -15,7 +15,7 @@
  */
 
 allprojects {
-	version = '3.4.0-SNAPSHOT'
+	version = '3.4.0'
 
 	ext {
 		groovyVersion = '4.0.25'

thymeleaf-layout-dialect-docs/getting-started.md

@@ -28,7 +28,7 @@ co-ordinates:
 
  - GroupId: `nz.net.ultraq.thymeleaf`
  - ArtifactId: `thymeleaf-layout-dialect`
- - Version: `3.3.0`
+ - Version: `3.4.0`
 
 Check the [project releases](https://github.com/ultraq/thymeleaf-layout-dialect/releases)
 for a list of available versions.  Each release page also includes a