Update playbook.json

Author: raoulvdberge

playbook.json

@@ -15,7 +15,7 @@
       "github": {
         "organization": "refinedmods",
         "repository": "refinedstorage2",
-        "minimumVersion": "2.0.0-beta.16",
+        "minimumVersion": "2.0.0-beta.17",
         "snapshotBranch": "develop",
         "snapshotIsLatest": true
       }