update jdt.core to latest 3.39.0 release

Author: martinlippert

headless-services/spring-boot-language-server/pom.xml

@@ -15,7 +15,7 @@
 
 	<properties>
 		<dependencies.version>${project.version}</dependencies.version>
-		<jdt.core.version>3.38.0</jdt.core.version>
+		<jdt.core.version>3.39.0</jdt.core.version>
 		<lsp4xml.version>0.24.0</lsp4xml.version>
 	</properties>