Bump the version for release

Author: alessiostalla

package.json

@@ -3,7 +3,7 @@
 	"description": "AST building blocks for TypeScript/JavaScript, part of the *lasu family, with optional integrations with ANTLR4 and Ecore.",
 	"author": "Strumenta s.r.l.",
 	"publisher": "strumenta",
-	"version": "1.6.27",
+	"version": "1.6.28",
 	"license": "Apache-2.0",
 	"keywords": [
 		"antlr",