fix: use 2.0.0 jms serializer

composer.json

@@ -1,7 +1,6 @@
 {
-    "name": "aerex/taskwarrior",
+    "name": "aerex/taskwarrior-baikal-plugin",
     "description": "A Baikal plugin for taskwarrior",
-    "version": "1.0.0",
     "type": "library",
     "keywords": [
       "task",
@@ -10,10 +9,14 @@
       "Baikal",
       "sabre"
     ],
+
+    "repositories": [{"type": "vcs", "url": "https://aerex.me/git/Aerex/Taskwarrior"}],
     "require": {
         "php": ">=5.5",
         "sabre/dav": "~3.1.2",
-        "davidbadura/taskwarrior": "^3.0",
+        "jms/serializer": "2.0.0-RC1",
+        "jms/metadata": "^2.0@RC",
+        "aerex/taskwarrior": "^3.0",
         "sabre/vobject": "^4.0",
         "easycorp/easy-log-handler": "^1.0"
     },