Update lemminx to 0.29.0

Author: vrubezhny

org.eclipse.wildwebdeveloper.xml/pom.xml

@@ -40,7 +40,7 @@
 									<groupId>org.eclipse.lemminx</groupId>
 									<artifactId>org.eclipse.lemminx</artifactId>
 									<!-- Bumping to version with API breakage needs to bump bundle version at least by +0.1.0 -->
-									<version>0.28.0</version>
+									<version>0.29.0</version>
 									<!-- classifier:uber includes all dependencies -->
 									<classifier>uber</classifier>
 								</artifactItem>