Fixed wrong version

build/package.json

@@ -1,6 +1,6 @@
 {
   "name": "Lychee",
-  "version": "2.6",
+  "version": "2.6.0",
   "description": "Self-hosted photo-management done right.",
   "authors": "Tobias Reich <tobias.reich.ich@gmail.com>",
   "license": "MIT",